Fiber Amplifier

Keywords: fiber amplifier, EDFA, fiber laser, fiber communication

Jul 04, 2020
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Data Sheet

Fiber Amplifiers We have 7 series of erbium-doped fiber amplifiers: PM-EDFA, BA-EDFA, pre-EDFA, pulse EDFA, high power EDFA, Bidi-EDFA and Raman fiber amplifier. 1. PM EDFA The STK-KY-EDFA-PM series PM-EDFA is a single-polarization-amplified erbium-do

We have 7 series of erbium-doped fiber amplifiers: PM-EDFA, BA-EDFA, pre-EDFA, pulse EDFA, high power EDFA, Bidi-EDFA and Raman fiber amplifier.

1. PM EDFA

The STK-KY-EDFA-PM series PM-EDFA is a single-polarization-amplified erbium-doped fiber amplifier. The main optical path of the amplifier is a fully polarization-maintaining optical path (slow-axis operation). High-quality polarization-maintaining devices are used to ensure the polarization extinction ratio of the overall optical path is better than 20dB and output up to 33dBm can be achieved.

For different applications, a variety of amplification structures can be selected:

conventional single-stage amplification structure;
single-stage low-noise optimization structure;
dual-stage amplification structure;
dual-stage structure, three-stage amplification, etc. .

For different applications, the lowest noise can achieve a noise figure of 3.6dB, and the high gain can achieve a gain of more than 45dB. The multi-stage amplification structure has the effect of improving the OSNR. At the same time, the narrow-band ASE filter can be used to achieve lower ASE noise output, which can provide amplification of weak linearly polarized light signals for special applications, such as coherent optical communication, laser radar, meteorological detection and other fields.

Key Features

Wavelength 1540~1565nm
Gain Max.45dB
Low noise figure 3.6dB
A variety of amplification structures are available
Polarization extinction ratio >23dB
Output Max.33dBm
Output power is adjustable
Module, desktop optional
Can be customized

Applications

Long-distance coherent optical fiber communication system
Laser radar
Meteorological detection

Parameters		Symbol	Unit	Min.	Typ.	Max.
Optical Parameters
Wavelength		lc	nm	1540		1565
Input signal power*		Pi	dBm	-30		10
Gain**		G	dB		30	45
Saturated optical power output (adjustable)		Po	dBm			33
Polarization extinction ratio		PEXR	dB	23
Noise index***		NF	dB	3.6		6.5
Output optical power stability		DP	dB			±0.1
Input/output optical isolation		ISO	dB	30
Return loss		RL	dB	40
Input pump leakage		PL_in	dBm			-30
Output pump leakage		PL_out	dBm			-40
Electrical Parameters
Voltage	Module	Vo	V	4.75	5	5.25
Voltage	Desktop	Vo	V( AC )	80		240
Power supply interface	Module			5-pin connector
Communication Interface				RS232 serial communication
Interface Type
Fiber type			Fujikura PMF 900um
Fiber interface	Module		900um casing, pigtail 1m
Fiber interface	Desktop		Fiber flange interface
Fiber connector			FC/APC
Dimensions
Package size	Module		mm	90×70×18
Package size	Desktop		mm	240×300×90

* Input optical power is optional.
**Gain optional.
*** Noise index test condition is that the gain is greater than 25dB.

2. Pulse EDFA

The STK-KY-EDFA-PL series pulse EDFA is a fiber amplifier specially used for pulsed optical signal amplification. It can amplify optical pulses with a frequency of 1Hz-1MHz and a pulse width of less than 100ns, the maximum output peak power can reach 500W. This product adopts low-noise erbium-doped fiber and purely analog pump laser drive circuit to ensure its high gain and low noise figure. It can display input and output optical power, pump laser working current, working temperature , cooling current and other parameters in real time. This product is mainly used in optical fiber communication system, quantum communication systems, picosecond pulse amplification, laser radar, optical fiber sensing systems such as Raman, Brillouin and φ-OTDR, and other fields.

Key Features

Pulsed light amplification
High gain
Low noise figure<5.5dB
Pulse width<100ns
Peak power Max.500W
Module, desktop optional
Can be customized

Applications

Optical fiber communication system
High power pulsed laser
Optical fiber sensing system
Laser radar

Parameters			Symbol	Unit	Min.	Typ.	Max.
Optical Parameters
Wavelength			lc	nm	1528		1563
Input light	Average optical power*		Pi	dBm			-10
	Pulse width		t	ns			100
	Repeat frequency		f	KHz			1000
	Extinction Ratio		ER	dB	30
Output light peak power			Pp	W	10		500
Gain**			G	dB		30	50
Noise index***			NF	dB			5.0
Output optical power stability			DP	dB			±0.1
Input/output optical isolation			ISO	dB	30
Return loss			RL	dB	30
Polarization dependent gain			PDG	dB		0.3	0.5
Polarization mode dispersion			PMD	ps			0.3
Input pump leakage			PL_in	dBm			-30
Output pump leakage			PL_out	dBm			-40
Electrical Parameters
Voltage		Module	Vo	V	4.75	5	5.25
Voltage		Desktop	Vo	V( AC )	80		240
Power supply interface		Module			5-pin connector
Communication Interface					RS232 serial communication
Interface Type
Fiber type				SMF-28e
Fiber interface		Module		900um casing, pigtail 1m
Fiber interface		Desktop		Fiber flange interface
Fiber connector				FC/APC
Dimensions
Package size		Module		mm	90×70×18
Package size		Desktop		mm	240×300×90

* Input optical power is optional.
** Gain is optional.
*** Noise index test condition is that the gain is greater than 25dB.

3. High Power Fiber Amplifier

The STK-KY-EDFA-HP series high power fiber amplifier uses imported high-performance double-clad erbium & ytterbium co-doped fibers and high-power multimode pump lasers to achieve continuous output up to 10W. The purely analog pump laser drive circuit guarantees the high gain and low noise figure of the amplifier. The desktop machine can display the input and output optical power, pump laser operating current, working temperature, cooling current and other parameters in real time. This product is mainly used in long-distance optical fiber communication systems, optical fiber sensing systems, scientific research and other fields.

Key Features

Wavelength 1540~1570nm
Output power max.10W
Low noise figure<5.5dB
Output power is adjustable
Module, desktop optional
Can be customized

Applications

Long-distance optical fiber communication system
Optical fiber sensing system
CATV cable transmission system
Scientific research

Parameters		Symbol	Unit	Min.	Typ.	Max.
Optical Parameters
Wavelength		lc	nm	1545		1565
Input signal power*		Pi	dBm	-5		10
Gain**		G	dB		30	45
Saturated output optical power		Po	dBm	30		40
Optical power adjustable range			%	0		100
Noise index***		NF	dB		5.5	6
Output optical power stability		DP	dB			±0.1
Input/output optical isolation		ISO	dB	50
Return loss		RL	dB	50
Polarization dependent gain		PDG	dB		0.3	0.5
Polarization mode dispersion		PMD	ps			0.4
Input pump leakage		PL_in	dBm			-30
Output pump leakage		PL_out	dBm			-40
Electrical Parameters
Voltage	Module	Vo	V	4.75	5	5.25
Voltage	Desktop	Vo	V( AC )	80		240
Power supply interface	Module			5-pin connector
Communication Interface				RS232 serial communication
Interface Type
Fiber type			SMF-28e
Fiber interface	Module		900um casing, pigtail 1m
Fiber interface	Desktop		Fiber flange interface
Fiber connector			FC/APC
Dimensions
Package size	Module		mm	150×120×30
Package size	Desktop		mm	240×300×90

* Input optical power is optional.
** gain optional.
*** Noise index test condition is that the gain is greater than 25dB.

4. BA EDFA

The STK-KY-EDFA-BA series BA-EDFA is a fiber amplifier specially used for single-wavelength or multi-wavelength. It is usually placed at the back end of the optical transmitter to increase the optical power of the transmitted signal. This product adopts high erbium-doped fiber and purely analog pump laser drive circuit to ensure its high gain and low noise. It can display input and output optical power, pump laser working current, working temperature , cooling current and other parameters in real time. This product is mainly used in long-distance optical fiber communication system, quantum communication, picosecond pulse amplification, optical fiber sensing systems and other fields.

Key Features

Wavelength C,L-band
Input range -10~10dBm
Gain Max.37dB
Low noise figure<4.5dB
Output power is adjustable,Max.27dBm
Module, desktop optional
Can be customized

Applications

Long-distance optical fiber communication system
Quantum communication
Optical fiber sensing system
CATV cable transmission system
Scientific research

Parameters			Symbol	Unit	Min.	Typ.	Max.
Optical Parameters
Wavelength	C-band		lc	nm	1528		1565
Wavelength	L-band		lc	nm	1570		1610
Input signal power*			Pi	dBm	-10		10
Gain**			G	dB		30	37
Saturated optical power output (adjustable)			Po	dBm	13		27
Noise index***			NF	dB		4.5	5.0
Output optical power stability			DP	dB			±0.05
Input/output optical isolation			ISO	dB	30
Return loss			RL	dB	30
Polarization dependent gain			PDG	dB		0.3	0.5
Polarization mode dispersion			PMD	ps			0.5
Input pump leakage			PL_in	dBm			-40
Output pump leakage			PL_out	dBm			-40
Electrical Parameters
Voltage		Module	Vo	V	4.75	5	5.25
Voltage		Desktop	Vo	V( AC )	80		240
Power supply interface		Module			5-pin connector
Communication Interface					RS232 serial communication
Interface Type
Fiber type				SMF-28e
Fiber interface		Module		900um casing, pigtail 1m
Fiber interface		Desktop		Fiber flange interface
Fiber connector				FC/APC
Dimensions
Package size		Module		mm	90×70×18
Package size		Desktop		mm	240×300×90

* Input optical power is optional.
** Gain is optional.
*** Noise index test condition is that the gain is greater than 25dB.

5. Pre EDFA

The STK-KY-EDFA-PA series Pre-EDFA is a fiber amplifier specially used for small signal amplification. It is usually placed at the front of optical receiver or photodetector to increase the sensitivity of photodetector. This product is a two-stage amplification structure. It adopts low-noise erbium-doped fiber and purely analog pump laser drive circuit to ensure its high gain and low noise. It can display input and output optical power, pump laser working current, working temperature , cooling current and other parameters in real time. This product is mainly used in high-speed optical fiber communication system, quantum communication, picosecond pulse amplification, optical fiber sensing systems and other fields.

Key Features

Wavelength C,L,C&L
Small signal amplification
High gain Max.50dB
Low noise figure<4.5dB
Output power is adjustable
Module, desktop optional
Can be customized

Applications

Long-distance optical fiber communication system
Optical fiber vibration sensing system
CATV cable transmission system
Scientific research

Parameters			Symbol	Unit	Min.	Typ.	Max.
Optical Parameters
Wavelength	C-band		lc	nm	1528		1563
	L-band		lc	nm	1565		1610
	CL-band		lc	nm	1528		1610
Input signal power*			Pi	dBm	-45		-10
Gain**			G	dB		30	50
Saturated optical power output (adjustable)			Po	dBm	-15	10
Noise index***			NF	dB		4.5	5.0
Output optical power stability			DP	dB			±0.1
Input/output optical isolation			ISO	dB	30
Return loss			RL	dB	30
Polarization dependent gain			PDG	dB		0.3	0.5
Polarization mode dispersion			PMD	ps			0.3
Input pump leakage			PL_in	dBm			-30
Output pump leakage			PL_out	dBm			-40
Electrical Parameters
Voltage		Module	Vo	V	4.75	5	5.25
		Module	Io	mA			500
		Desktop	Vo	V		AC 220
Power supply interface		Module			5-pin connector
Communication Interface					RS232 serial communication
Interface Type
Fiber type				SMF-28e
Fiber interface		Module		900um casing, pigtail 1m
Fiber interface		Desktop		Fiber flange interface
Fiber connector				FC/APC
Dimensions
Package size		Module		mm	90×70×18
Package size		Desktop		mm	240×300×90

* Input optical power is optional.
** Gain is optional.
*** Noise index test condition is that the gain is greater than 25dB.

6. BIDI EDFA

The STK-KY-EDFA-BI series Bidi-EDFA is a fiber amplifier specially used for bidirectional simultaneous signal amplification. This product adopts low-noise erbium-doped fiber and purely analog pump laser drive circuit to ensure its high gain and low noise figure, specially designed optimized optical path ensures the uniformity of bidirectional amplification gain. It can display pump laser working current, working temperature , cooling current and other parameters in real time. This product is mainly used in optical fiber communication system, fiber laser and bidirectional simultaneous signal amplification of the optical fiber vibration sensing system.

Key Features

Bidirectional signal amplification
High gain
Low noise figure<4.5dB
Output power is adjustable
Module, desktop optional
Can be customized

Applications

Long-distance optical fiber communication system
Optical fiber vibration sensing system
Fiber laser

Parameters		Symbol	Unit	Min.	Typ.	Max.
Optical Parameters
Wavelength		lc	nm	1528		1563
Input signal power*		Pi	dBm	-45		-10
Gain**		G	dB		30	50
Bidirectional gain difference		DG	dB			2
Saturated optical power output (adjustable)		Po	dBm			15
Noise index***		NF	dB			5.0
Output optical power stability		DP	dB			±0.1
Return loss		RL	dB	30
Polarization dependent gain		PDG	dB		0.3	0.5
Polarization mode dispersion		PMD	ps			0.3
Input pump leakage		PL_in	dBm			-20
Output pump leakage		PL_out	dBm			-30
Electrical Parameters
Voltage	Module	Vo	V	4.75	5	5.25
Voltage	Desktop	Vo	V( AC )	80		240
Power supply interface	Module			5-pin connector
Communication Interface				RS232 serial communication
Interface Type
Fiber type			SMF-28e
Fiber interface	Module		900um casing, pigtail 1m
Fiber interface	Desktop		Fiber flange interface
Fiber connector			FC/APC
Dimensions
Package size	Module		mm	90×70×18
Package size	Desktop		mm	240×300×90

* Input optical power is optional.
** Gain is optional.
*** Noise index test condition is that the gain is greater than 25dB.

7. Raman Fiber Amplifier

The STK-KY-QRA series Raman fiber amplifier uses imported high-performance and high-power 1480nm pump lasers, which can achieve 1W continuous output by polarization combining. The purely analog pump laser drive circuit guarantees the high gain and low noise figure of the amplifier. The desktop machine can display the input and output optical power, pump laser operating current, working temperature, cooling current and other parameters in real time. This product is mainly used in long-distance optical fiber communication systems, optical fiber sensing systems, scientific research and other fields.

Key Features

Wavelength 1527~1563nm
Output power is optional 500mW, 1W
Gain Typ.12dB
Noise figure<3dB
Gain flatness<2dB
Output power is adjustable
Module, desktop optional
Can be customized

Applications

Long-distance optical fiber communication system
Optical fiber sensing system
CATV cable transmission system
Scientific research

Parameters		Symbol	Unit	Min.	Typ.	Max.
Optical Parameters
Wavelength		lc	nm	1527		1563
Gain		G	dB		12	15
Pump optical power		Po	mW	500		1000
Pump optical power adjustable range			%	10		100
Signal light loss		IL	dB		0.7
Equivalent noise figure		NF	dB		-1
Gain flatness		DG	dB			2
Output optical power stability		DP	dB			±0.1
Polarization dependent gain		PDG	dB		0.3	0.5
Polarization mode dispersion		PMD	ps			0.5
Electrical Parameters
Voltage	Module	Vo	V	4.75	5	5.25
Voltage	Desktop	Vo	V( AC )	80		240
Power supply interface	Module			5-pin connector
Communication Interface				RS232 serial communication
Interface Type
Fiber type			SMF-28e
Fiber interface	Module		900um casing, pigtail 1m
Fiber interface	Desktop		Fiber flange interface
Fiber connector			FC/APC
Dimensions
Package size	Module		mm	150×120×30
Package size	Desktop		mm	240×300×90