Our main products are free space SLD modules and SM and PM fiber pigtailed SLD modules based on a single transverse mode SLD emitters, as well as multimode fiber pigtailed SLD modules in different spectral bands from 650 nm to 1620 nm, including extre
Since 1992, we have been manufacturing high quality Superluminescent Light Emitting Diodes (SLDs), Gain Chip Modules and Semiconductor Optical Amplifiers (SOAs). Our main products are free space SLD modules and SM and PM fiber pigtailed SLD modules based on a single transverse mode SLD emitters, as well as multimode fiber pigtailed SLD modules in different spectral bands from 650 nm to 1620 nm, including extremely powerful (up to 100 mW) and broadband (up to 100 nm FWHM) models.
The modules are offered in a variety of hermetic packages (TO, DIL14, Butterfly, etc.). Custom performance characteristics and different package types are available upon request. For customers' convenience, modules can be delivered with an appropriate current and temperature controller.
Our products are employed over a wide range of applications including biomedical and industrial optical coherence tomography (OCT), fiberoptic gyros, Bragg Grating sensors, atomic force microscopy, metrology of fiberoptic components (including DWDM components testing) and machine vision.
Our uncooled single mode free space SLDs are listed in the table below, grouped by spectral band.
|
Model |
Wavelength (nm) |
Spectrum width, FWHM (nm) |
Output power, free space (mW) |
Package |
|
SLD-260-MP-670 |
670 |
7.5 |
up to 5.0 |
TO-9 |
|
SLD-260-HP-670 |
670 |
7.0 |
up to 15.0 |
TO-9 |
|
SLD-340-MP-795 |
795 |
15 |
20 |
TO-9 |
|
SLD-380-MP-TO56 |
825 |
20 |
5 |
TO-56 |
|
SLD-380-MP-TO9 |
835 |
17 |
20 |
TO-9 |
|
SLD-340-HP-850 |
850 |
20 |
30 |
TO-56 |
|
SLD-340-UHP-840 |
840 |
25 – 30 |
up to 100 |
TO-9 |
|
SLD-340-MP-880 |
880 |
40 |
20 |
TO-9 |
|
SLD-480-MP-920 |
920 |
30 |
20 |
TO-9 |
|
SLD-480-UHP-960 |
960 |
45 |
90 |
TO-9 |
|
SLD-530-UHP-1040 |
1040 |
35 – 45 |
up to 80.0 |
TO-9 |
Our uncooled single mode fiber pigtailed SLDs are listed in the table below, grouped by spectral band.
|
Model |
Wavelength (nm) |
Spectrum width, FWHM (nm) |
Output power, |
Package |
|
SLD-381 MINIBUT |
770 – 860 |
15 – 20 |
Up to 2.0 |
Minibut |
|
SLD-561 MINIBUT |
1270 – 1330 |
20 – 25 |
Up to 1.0 |
Minibut |
Our temperature-controlled (cooled) single mode SLDs are listed in the table below, grouped by spectral band.
|
Model |
Wavelength (nm) |
Spectrum width, FWHM (nm) |
Output power, fiber/free space (mW) |
Package |
|
SLD-261-MP |
660 – 680 |
7.5 |
up to 2.0/n.a. |
Butterfly, DIL14 |
|
SLD-260-HP |
660 – 680 |
7.0 |
n.a./15.0 |
TOW |
|
SLD-261-HP |
660 – 680 |
7.0 |
up to 10.0/n.a. |
New! Butterfly |
|
SLD-260-UHP |
660 – 680 |
7.0 |
n.a./25.0 |
New! TOW |
|
SLD-261-UHP |
660 – 680 |
7.0 |
15.0/n.a. |
New! Butterfly |
|
SLD-33-MP |
770 – 790 |
50 |
up to 1.25/4.0 |
Butterfly/DIL14,TOW |
|
SLD-33-HP |
770 – 790 |
50 |
up to 25.0/50.0 |
Butterfly/DIL14,TOW |
|
SLD-34-MP |
840 – 860 |
up to 60 |
up to 2.5/4.0 |
Butterfly/DIL14,TOW |
|
SLD-34-HP |
810 – 880 |
30 – 50 |
up to 16.0/40.0 |
Butterfly/DIL14,TOW |
|
SLD-35-MP |
820 – 870 |
62 |
up to 1.25/6.0 |
Butterfly/DIL14,TOW |
|
SLD-35-HP |
825 – 870 |
62 |
up to 25.0/50.0 |
Butterfly/DIL14,TOW |
|
SLD-351UBB |
830 |
85 (6 dB) |
10/n.a. |
Butterfly |
|
SLD-37-MP |
835 |
50 |
1.25/6.0 |
Butterfly/DIL14,TOW |
|
SLD-37-HP |
840 |
50 |
up to 25.0/50.0 |
Butterfly/DIL14,TOW |
|
SLD-38-MP |
770 – 890 |
20 |
up to 3.0/12.0 |
Butterfly/DIL14,TOW |
|
SLD-38-HP |
790 – 860 |
20 |
up to 30.0/50.0 |
Butterfly/TOW |
|
SLD-47-MP |
900, 940 |
up to 75 |
1.5/5.0 |
Butterfly/DIL14,TOW |
|
SLD-48-MP-920 |
920 |
30 |
3.0/7.5 |
New! Butterfly/DIL14,TOW |
|
SLD-47-HP |
940 |
up to 100 |
up to 10.0/20.0 |
Butterfly/DIL14,TOW |
|
SLD-471UBB |
930 |
115 (6 dB) |
10/n.a. |
Butterfly |
|
SLD-48-HP |
960 |
30 |
up to 30.0/60.0 |
Butterfly/DIL14,TOW |
|
SLD-48-MP-970 |
970 |
30 |
3.0/7.5 |
Butterfly/DIL14,TOW |
|
SLD-52 |
1000, 1020 |
up to 100 |
up to 5.0/10.0 |
Butterfly/DIL14,TOW |
|
SLD-53-MP |
1020 – 1060 |
20 – 70 |
5.0/10.0 |
Butterfly/DIL14,TOW |
|
SLD-53-HP |
1050 |
35 |
up to 30.0/60.0 |
Butterfly/DIL14,TOW |
|
SLD-54-HP |
1060 |
70 |
up to 20.0/40.0 |
Butterfly/DIL14,TOW |
|
SLD-55-MP |
1180 |
30 |
1.0/n.a. |
Butterfly/DIL14,TOW |
|
SLD-56-MP |
1270 – 1330 |
40 |
up to 2.0/n.a. |
Butterfly/DIL14 |
|
SLD-56-HP |
1270 – 1330 |
35 |
up to 30.0/n.a. |
Butterfly/DIL14 |
|
SLD-57-MP |
1270 – 1330 |
70 |
1.0/n.a. |
Butterfly/DIL14 |
|
SLD-57-HP |
1280 – 1330 |
60 |
up to 10.0/n.a. |
Butterfly/DIL14 |
|
SLD-661-LP |
1370 -1410 |
85 |
0.35/n.a. |
Butterfly/DIL14 |
|
SLD-661-MP |
1370 -1410 |
65 |
2.05/n.a. |
Butterfly/DIL14 |
|
SLD-661-HP |
1370 -1410 |
45-60 |
155/n.a. |
Butterfly/DIL14 |
|
SLD-761-LP |
1560 |
70 – 100 |
0.2/n.a. |
Butterfly/DIL14 |
|
SLD-761-MP |
1550 |
45 – 70 |
up to 2.0/n.a. |
Butterfly/DIL14 |
|
SLD-761-HP |
1550 |
45 |
up to 10.0/n.a. |
Butterfly/DIL14 |
Our multimode SLDs are listed in the table below, grouped by spectral band.
|
Model |
Wavelength (nm) |
Spectrum width, FWHM (nm) |
Power ex M fiber(mW) |
Package |
|
SLD-M381 |
840 |
15 |
up to 2.0/n.a. |
Butterfly |
|
SLD-M341 |
855 |
25 |
n.a./15.0 |
Butterfly |
|
SLD-M531 |
1065 |
40 |
up to 10.0/n.a. |
Butterfly |
We introduce a new family of products, fiber-coupled Semiconductor Optical Gain and Amplifier modules:
The modules are offered in hermetic packages as follows:
Features:
- Up to 60 nm tuning range*
- PM or SM fiber pigtails
- PD monitors
- FC/APC terminated pigtails on request
* When used as an active element of an external cavity semiconductor laser.
Packages: DIL, DBUT
Specifications:
(Nominal Emitter Stabilization Temperature +25 °C)
|
Mode |
Parameter |
Min. |
Typ. |
Max. |
|
SLD-mode (angled fiber cleave) |
Output power ex SM fiber at maximum spectral width, mW |
|
1.0 |
|
|
Forward current, mA |
|
65 |
90 |
|
|
Peak Wavelength, nm |
|
840 |
|
|
|
Spectral width, nm |
45 |
50 |
|
|
|
Residual spectral modulation, % |
|
3.0 |
6.0 |
|
|
Laser-mode (normal fiber cleave) |
Threshold current, mA |
|
40 |
50 |
|
External slope efficiency, mW/mA |
0.25 |
0.4 |
|
|
|
Output power in SM fiber, mW |
|
|
10.0 |
|
|
|
Forward voltage, V |
|
1.8 |
2.0 |
|
Operating temperature (case temperature), °C |
-55 |
|
+70 |
|
|
Cooler current, A |
|
|
1.2 |
|
|
Cooler voltage, V |
|
|
3.5 |
Features:
- Up to 60nm tuning range*
- PD monitors
- PM fiber pigtails
- FC/APC terminated pigtails on request
* When used as an active element of an external cavity semiconductor laser.
Packages: cooled DIL, DBUT
Specifications:
(Nominal Emitter Stabilization Temperature +25 °C)
|
Mode |
Parameter |
Min. |
Typ. |
Max. |
|
SLD-mode (angled fiber cleave) |
Output power ex SM fiber at maximum forward current, mW |
|
1.0 |
|
|
Forward current, mA |
|
200 |
260 |
|
|
Peak Wavelength, nm |
|
970 |
|
|
|
Spectral width, nm |
45 |
50 |
|
|
|
Residual spectral modulation, % |
|
3.0 |
6.0 |
|
|
Laser-mode (normal fiber cleave) |
Threshold current, mA |
|
100 |
150 |
|
External slope efficiency, mW/mA |
0.05 |
0.1 |
|
|
|
Output power in SM fiber, mW |
|
|
10.0 |
|
|
|
Forward voltage, V |
|
1.8 |
2.0 |
|
Operating temperature (case temperature), °C |
-55 |
|
+70 |
|
|
Cooler current, A |
|
|
1.2 |
|
|
Cooler voltage, V |
|
|
3.5 |
Applications:
- spectroscopy
- optical sensors
- optical coherence tomography
- optical metrology
- others
Features:
- up to 120 nm tuning range*
* When used as an active element of an external cavity semiconductor laser.
Packages: DIL, DBUT
Specifications:
(Nominal Emitter Stabilization Temperature +25 °C)
|
Mode |
Parameter |
Min |
Typ. |
Max |
|
SLD-mode (angled fiber cleave) |
Output power ex SM fiber at maximum forward current, mW |
|
3.0 |
|
|
Forward current, mA |
|
200 |
240 |
|
|
Peak Wavelength, nm |
|
1020 |
|
|
|
Spectral width, nm |
100 |
110 |
|
|
|
Residual spectral modulation, % |
|
5.0 |
10.0 |
|
|
Laser-mode(normal fiber cleave) |
Threshold current, mA |
|
40 |
60 |
|
External slope efficiency, mW/mA |
0.2 |
0.3 |
|
|
|
Output power in SM fiber, mW |
|
|
10.0 |
|
|
|
Forward voltage, V |
|
2.0 |
2.2 |
|
Operating temperature (case temperature), °C |
-55 |
|
+70 |
|
|
Cooler current, A |
|
|
1.2 |
|
|
Cooler voltage, V |
|
|
3.5 |
The following part numbers should be used when ordering:
SOA-521-(a)-(b)-(c),
where:
(a) – package type,
(b) – fiber type (SM or PM),
(c) – PD (if PD monitor is required).
Example: SOA-521-DBUT-SM-PD.
Features:
- fiber-to-fiber optical gain of more than 20 dB
- output power of up to 13 dBm
- -3 dB optical gain bandwidth of up to 50 nm
Package: Butterfly (DBUT)
Additional & customized:
- PM fiber pigtails
- FC/APC terminated pigtails
Specifications:
(nominal stabilization temperature +25 °C)
|
Parameter |
Min. |
Typ. |
Max. |
|
Forward current, mA |
- |
- |
300 |
|
Forward voltage, V |
- |
- |
2.5 |
|
Output optical power, dBm |
- |
- |
13.0 |
|
Central wavelength c, nm |
- |
785 |
- |
|
-3 dB optical gain bandwidth, nm |
- |
50 |
- |
|
Gain ripple, dB |
- |
< 0.1 |
- |
|
Small signal gain, dB |
- |
- |
25 |
|
Polarization dependent gain, dB |
- |
7.0 |
- |
Features:
- fiber-to-fiber optical gain of more than 30 dB
- output power of up to 13 dBm
- -3 dB optical gain bandwidth of up to 20 nm
Package: Butterfly (DBUT)
Additional & customized:
- PM fiber pigtails
- FC/APC terminated pigtails
Specifications
(nominal stabilization temperature +25 °C)
|
Parameter |
Min. |
Typ. |
Max. |
|
Forward current, mA |
- |
- |
200 |
|
Forward voltage, V |
- |
- |
2.5 |
|
Output optical power, dBm |
- |
- |
13.0 |
|
Central wavelength c, nm |
- |
795 |
- |
|
-3 dB optical gain bandwidth, nm |
- |
16 |
- |
|
Gain ripple, dB |
- |
< 0.1 |
- |
|
Small signal gain, dB |
- |
30 |
- |
|
Polarization dependent gain, dB |
- |
7.0 |
- |
Features:
- fiber-to-fiber optical gain of more than 25 dB
- output power of up to 15 dBm
- -3 dB optical gain bandwidth of up to 55 nm
Package: Butterfly (DBUT)
Additional & customized:
- PM fiber pigtails
- FC/APC terminated pigtails
Specifications:
(nominal stabilization temperature +25 °C)
|
Parameter |
Min. |
Typ. |
Max. |
|
Forward current, mA |
- |
- |
200 |
|
Forward voltage, V |
- |
- |
2.5 |
|
Output optical power, dBm |
- |
- |
15.0 |
|
Central wavelength c, nm |
- |
830 |
- |
|
-3 dB optical gain bandwidth, nm |
- |
55 |
- |
|
Gain ripple, dB |
- |
< 0.1 |
- |
|
Small signal gain, dB |
- |
- |
25 |
|
Polarization dependent gain, dB |
- |
7.0 |
- |
Features:
- fiber-to-fiber optical gain of more than 30 dB
- output power of up to 17 dBm
- -3 dB optical gain bandwidth of up to 25 nm
Package: Butterfly (DBUT)
Additional & customized:
- PM fiber pigtails
- FC/APC terminated pigtails
Specifications:
(nominal stabilization temperature +25 °C)
|
Parameter |
Min. |
Typ. |
Max. |
|
Forward current, mA |
- |
- |
300 |
|
Forward voltage, V |
- |
- |
2.3 |
|
Output optical power, dBm |
- |
- |
17.0 |
|
Central wavelength c, nm |
- |
840 |
- |
|
-3 dB optical gain bandwidth, nm |
- |
25 |
- |
|
Gain ripple, dB |
- |
< 0.1 |
- |
|
Small signal gain, dB |
- |
30 |
- |
|
Polarization dependent gain, dB |
- |
7.0 |
- |
Features:
- fiber-to-fiber optical gain of of up to 25 dB
- output power of up to 13 dBm
- -3 dB optical gain bandwidth of up to 40 nm
Package: Butterfly (DBUT)
Additional & customized:
- PM fiber pigtails
- FC/APC terminated pigtails
Specifications:
(nominal stabilization temperature +25 °C)
|
Parameter |
Min. |
Typ. |
Max. |
|
Forward current, mA |
- |
- |
200 |
|
Forward voltage, V |
- |
- |
2.5 |
|
Output optical power, dBm |
- |
- |
13.0 |
|
Central wavelength c, nm |
- |
850 |
- |
|
-3 dB optical gain bandwidth, nm |
- |
40 |
- |
|
Gain ripple, dB |
- |
< 0.1 |
- |
|
Small signal gain, dB |
- |
22 |
- |
|
Polarization dependent gain, dB |
- |
7.0 |
- |
Features:
- fiber-to-fiber optical gain of more than 25 dB
- output power of up to 13 dBm
- -3 dB optical gain bandwidth of up to 60 nm
Package: Butterfly (DBUT)
Additional & customized:
- PM fiber pigtails
- FC/APC terminated pigtails
Specifications:
(nominal stabilization temperature +25 °C)
|
Parameter |
Min. |
Typ. |
Max. |
|
Forward current, mA |
- |
- |
220 |
|
Forward voltage, V |
- |
- |
2.5 |
|
Output optical power, dBm |
- |
- |
13.0 |
|
Central wavelength c, nm |
- |
870 |
- |
|
-3 dB optical gain bandwidth, nm |
- |
58 |
- |
|
Gain ripple, dB |
- |
< 0.1 |
- |
|
Small signal gain, dB |
- |
- |
25 |
|
Polarization dependent gain, dB |
- |
7.0 |
- |
Features:
- more than 20 dB fiber-to-fiber optical gain
- 10 dBm ASE power while keeping very low spectral ripple
- 20 nm gain bandwidth (-3 dB)
Package: butterfly (DBUT)
Additional and customized:
- PM fiber pigtails
- FC/APC terminated pigtails
Specifications:
(Nominal Emitter Stabilization Temperature +25 °C)
|
Parameter |
Typ. |
Max. |
|
Forward current, mA |
|
200 |
|
Forward voltage, V |
|
2.2 |
|
ASE output power ex SM fiber (Pin=0), dBm |
10.0 |
|
|
Central wavelength с, nm |
870 |
|
|
-3 dB optical gain bandwidth, nm |
20 |
|
|
Gain ripple, dB |
0.1 |
0.2 |
|
Small signal gain, dB |
25 |
|
|
Saturation output power, dBm |
6.0 |
|
Features:
- fiber-to-fiber optical gain of more than 25 dB
- output power of up to 13 dBm
- -3 dB optical gain bandwidth of up to 65 nm
Package: Butterfly (DBUT)
Additional & customized:
- PM fiber pigtails
- FC/APC terminated pigtails
Specifications:
(nominal stabilization temperature +25 °C)
|
Parameter |
Typ. |
Max. |
|
Forward current, mA |
|
200 |
|
Forward voltage, V |
|
2.2 |
|
Output optical power, dBm |
|
13.0 |
|
Central wavelength с, nm |
930 |
|
|
-3 dB optical gain bandwidth, nm |
65 |
|
|
Gain ripple, dB |
<0.1 |
|
|
Small signal gain, dB |
|
25 |
|
Polarization dependent gain, dB |
7.0 |
|
Features:
- fiber-to-fiber optical gain of more than 25 dB
- output power of up to 15 dBm
- -3 dB optical gain bandwidth of up to 40 nm
Package: Butterfly (DBUT)
Additional & customized:
- PM fiber pigtails
- FC/APC terminated pigtails
Specifications:
(nominal stabilization temperature +25 °C)
|
Parameter |
Min. |
Typ. |
Max. |
|
Forward current, mA |
- |
- |
220 |
|
Forward voltage, V |
- |
- |
2.3 |
|
Output optical power, dBm |
- |
- |
15.0 |
|
Central wavelength c, nm |
- |
970 |
- |
|
-3 dB optical gain bandwidth, nm |
- |
40 |
- |
|
Gain ripple, dB |
- |
< 0.1 |
- |
|
Small signal gain, dB |
- |
- |
27 |
|
Polarization dependent gain, dB |
- |
7.0 |
- |
Features:
- fiber-to-fiber optical gain of up to 24 dB
- output power of up to 13 dBm
- -3 dB optical gain bandwidth of up to 95 nm
Package: Butterfly (DBUT)
Additional & customized:
- PM fiber pigtails
- FC/APC terminated pigtails
Specifications:
(nominal stabilization temperature +25 °C)
|
Parameter |
Min. |
Typ. |
Max. |
|
Forward current, mA |
- |
- |
300 |
|
Forward voltage, V |
- |
- |
2.5 |
|
Output optical power, dBm |
- |
- |
13.0 |
|
Central wavelength c, nm |
- |
1010 |
- |
|
-3 dB optical gain bandwidth, nm |
- |
95 |
- |
|
Gain ripple, dB |
- |
< 0.1 |
- |
|
Small signal gain, dB |
- |
- |
24 |
|
Polarization dependent gain, dB |
- |
7.0 |
- |
Features:
- fiber-to-fiber optical gain of up to 30 dB
- output power of up to 15 dBm
- -3 dB optical gain bandwidth of up to 35 nm
Package: Butterfly (DBUT)
Additional & customized:
- PM fiber pigtails
- FC/APC terminated pigtails
Specifications:
(nominal stabilization temperature +25 °C)
|
Parameter |
Min. |
Typ. |
Max. |
|
Forward current, mA |
- |
- |
300 |
|
Forward voltage, V |
- |
- |
2.3 |
|
Output optical power, dBm |
- |
- |
15.0 |
|
Central wavelength c, nm |
- |
1060 |
- |
|
-3 dB optical gain bandwidth, nm |
- |
35 |
- |
|
Gain ripple, dB |
- |
< 0.1 |
- |
|
Small signal gain, dB |
- |
- |
30 |
|
Polarization dependent gain, dB |
- |
>10 |
- |
Features:
- fiber-to-fiber optical gain of up to 25 dB
- output power of up to 13 dBm
- -3 dB optical gain bandwidth of up to 75 nm
Package: Butterfly (DBUT)
Additional & customized:
- PM fiber pigtails
- FC/APC terminated pigtails
Specifications:
(nominal stabilization temperature +25 °C)
|
Parameter |
Min. |
Typ. |
Max. |
|
Forward current, mA |
- |
- |
220 |
|
Forward voltage, V |
- |
- |
2.5 |
|
Output optical power, dBm |
- |
- |
13.0 |
|
Central wavelength c, nm |
- |
1060 |
- |
|
-3 dB optical gain bandwidth, nm |
- |
75 |
- |
|
Gain ripple, dB |
- |
< 0.1 |
- |
|
Small signal gain, dB |
- |
- |
25 |
|
Polarization dependent gain, dB |
- |
7.0 |
- |
The following part numbers should be used when ordering:
SOA-542-(a)-(b),
where:
a – package type (DBUT),
b – fiber type (SM or PM).
Example: SOA-542-DBUT-SM.
We offer a wide selection of SLD-based broadband light sources. The offerings include both compact light source modules intended for integration into larger systems and benchtop instruments developed for use in industrial and research laboratories. Various designs allow analog or digital control of SLD modules. All sources have integrated high-precision driving electronics to provide stable and reliable performance. All sources are RoHS compliant.
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Product series |
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Description |
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SLD-mCS |
SLD-mCS,sCS-series Miniature Broadband Light Source Modules |
Miniature single-SLD broadband light sources with analog SLD control. The successor models to the SLD-MS. 9-30 V DC-powered. 50-KHzSLD modulation. Switchable SLD control mode (ACC-APC). Can be built based on any SLD of our drive current does not exceed 400 mA. |
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SLD-sCS |
SLD-mCS,sCS-series Miniature Broadband Light Source Modules |
Miniature single-SLD broadband light sources with analog SLD control. The successor models to the SLD-MS. 9-30 V DC-powered. 50-KHzSLD modulation. Switchable SLD control mode (ACC-APC). Can be built based on any SLD of our drive current does not exceed 400 mA. |
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SLD-CS |
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Compact single-SLD broadband light sources with analog SLD control. 9-30 V DC-powered. 50-kHz SLD modulation. Allows integration of additional components like couplers, optical isolators (including bulky 850-nm ones). Recommended for powerful SLD light sources. APC SLD control as a standard, ACC-APC switchable upon request. The versions based on the most powerful SLDs at different center wavelengths are available as a standard. Can be built based on any SLD of our drive current does not exceed 400 mA. |
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BLM2-D |
cBLMD-series Compact Broadband Light Source Modules with Extended Bandwidth. |
Compact broadband light sources with digital control of SLD modules (USB). 12 V DC-powered. Up to 3 SLDs inside. Allows integration of additional components like couplers, optical isolators (including bulky 850-nm ones). SLD control mode — APC only. The best combination of power and spectrum width in multiple-SLD models. TTL control or remote operation from a PC/laptop via a USB port. |
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M-S |
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High-power single-SLD benchtop broadband light sources. The instruments have been developed for use in industrial and research laboratories. These light sources are based on the most powerful SLDs of Superlum. Optically isolated, up to 30 mW output power. |
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M-D, M-T, M-Q |
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Multiple-SLD benchtop broadband light sources with extended bandwidth. The instruments have been developed for use in industrial and research laboratories. More than 20 mW output power, up to 200 nm spectrum width, and more. |
Our MOPA-SLD-850 is an ultra-high power SLD-based light source that features both high power levels (tens milliwatts) and an extremely weak sensitivity to optical feedback. This is achieved using a special optical scheme called MOPA (Master Oscillator Power Amplifier). A simplified block diagram of the MOPA scheme is shown in the figure below. A medium-power SLD operating as a master source provides an optical power of 6 – 10 mWwith a relatively broad spectrum of 10 – 20 nm centered at 850 nm. After passing through an appropriate optical isolator with an isolation of better than −25 dB, the power is elevated to a high level of 50 mW by a spectrally matched Semiconductor Optical Amplifier (SOA). The key advantage of such an optical configuration is its weak sensitivity to optical feedback, because the input power of 6 – 10 mW makes it possible for the SOA to reach a deep saturation level. In this situation, there is no need to install an optical isolator at the output of the SOA for protection from optical feedback. In addition, this allows eliminating any unwanted power drop related to insertion loss inside the isolator, which frequently reaches 2 dB. Another advantage of the MOPA scheme is that it uses only the polarization maintaining optical fiber — no SM-fiber coupled components are utilized. Most of the fiber-optic components are built on the fast-axis-blocked technology that guarantees high values of the PER (Polarization Extinction Ratio) at the MOPA output (> 18 dB).
Block Diagram of the MOPA Optical Scheme (Simplified).
M-SLD – Master SLD.
ISO – Isolator.
SOA – Semiconductor Optical Amplifier.
OPM – Optical Power Monitor.
APC – Automatic Power Control.
The MOPA system is offered in a compact metal case which can be used on a lab bench or in a rack. The instrument consists of a modular mainframe and several plug-in modules (power supplies, optical unit, current and temperature controllers, CPU etc.). Each MOPA system is equipped with a high-precision PM FC/APC optical socket for easy coupling of 2.0-mm narrow-key connectors. The device is supplied with a 1 mPM optical patch cable (other lengths are available upon request).
Our drive electronics includes two independent, high-precision, low-noise, constant-power current & temperature control drivers. The electronics provides safe current and temperature operation of the master SLD and the SOA. All the necessary SLD protective measures are implemented. Among the measures, the most important ones are the soft start, turn-on transient suppression, over temperature protection, open-circuit protection and pumping current limit.
The MOPA-SLD-850 can be operated locally from the front panel, or remotely from a computer with an RS-232 port. It contains minimum front-panel features needed for operation. No adjustments are required to run the device because it is completely pre-set at the factory. The rear panel of the instrument has a digital input to allow the drive current of the SOA to be pulse modulated (switched on or off). The maximum frequency of modulation is 50 kHz.
The device includes a linear power supply capable to operate from 220 VAC or 110 VAC. The required value of the line voltage is pre-set at the factory and should be specified by the customer when placing the order.
SLD-based light sources are excellent high-power speckle-free broadband light sources with a great potential for using in many practical applications such as OCT (Optical Coherence Tomography) Imaging Systems, FOG (Fiber Optic Gyroscopes), optical spectroscopy and the others.
Laser Safety Measures
For added safety, the system is designed to meet the laser safety requirements for class 3B laser products. Accordingly, the instrument incorporates the laser safety measures specified in IEC 60825-1 Ed. 2 2007-03, namely: the master key control, remote interlock connection, visual/audible alarm, information and warning stickers etc.
Product Customization Capabilities
We offer product customization services. A number of the operating characteristics of the product (e.g. the output power level, spectral characteristics etc.) are available for modification according to your specific needs.
Please contact us for further discussion of your requirements.
SLD-CS-series Compact High Power Broadband Light Source Modules.
M-S-series Broadlighters.