Lasers for Raman Spectroscope

Lasers for Raman Spectroscope

Lasers for Raman spectroscopy, wavelength available from 375nm to 980 nm and spectral linewidth from 0.1 nm and 0.06 nm.

STF Series Laser Diodes

1. Free Space Narrow Linewidth Laser Diode

diode laser

Applications:

  • Raman Spectroscopy
  • Medical
  • Spectrum Analysis
  • Scientific Research

Part number: STF-FRLD-785-350-FS-VBG-BTF

Specifications Unit Min Typ Max
Optical Data
CW Output Power mW 350 - -
Center Wavelength  nm 784.5 785.0 785.5
Spectral Width (FWHM) nm - - 0.1
Temperature Drift of  nm/°C - 0.01 -
Current Drift of  nm/A - 0.05 -
Electrical Data
Threshold Current A - 0.4 -
Operation Current A - 0.9 -
Operation Voltage V - 2.0 -
Slope Efficiency W/A - 0.7 -
PD Data
Current μA - - 2000
Thermistor kΩ / β(25°) 10±5% / 3450
TEC Data
Max. Current A - - 2.5
Max. Voltage V - - 6.3
Specifications Unit Min Typ Max
Temperature Conditions
Case Operation Temperature °C 10 - 30
Storage Temperature °C -20 - 70
Other Parameters
Lead Soldering Temperature °C - - 250
Lead Soldering Time sec - - 10
Relative Humidity (Operating) % - - 75
Relative Humidity (Storage) % - - 90
Dimension mm 38.1x12.7x8.1

diode laser2. Wavelength-stabilized Laser Diode

Features:

  • Wavelength 785nm
  • CW Output Power 100mW

Part number: STF-FRLD-785-100-VBG-TO56

Specifications Unit Min Typ Max
Optical Data
CW Output Power mW 100 - -
Center Wavelength  nm 784.5 785.0 785.5
Spectral Width (FWHM) nm - - 0.1
Temperature Drift of  nm/°C - 0.01 -
Electrical Data
Threshold Current mA - 50 -
Operation Current mA - 120 -
Slope Efficiency W/A - 0.85 -
Operation Voltage V - 2.0 -
Temperature Conditions
Case Operation Temperature °C 20 - 30
Storage Temperature °C -20 - 70
Other Parameters
Lead Soldering Temperature °C - - 250
Lead Soldering Time sec - - 10
Relative Humidity (Operating) % - - 75
Relative Humidity (Storage) % - - 90
Dimension mm Dia. 5.4x12.6

3. VBG Laser Diode 780nm 100mW

STF-FOLD-785-100S-VBG is a single mode semiconductor laser diode with 100mW CW output power at 785nm. Due to the integrated VBG the wavelength is fixed and the spectral width is very narrow. It is suitable for the use in various optoelectronic applications.

diode laser

APPLICATIONS:

  • Raman Spectroscopy
  • Bio-Instrumentation
  • Metrology
  • Sensing
  • Analytical Instrumentation

Optical and electrical characteristics (T = 25°C, P = 100mW):

Part number: STF-FOLD-785-100S-VBG

Operating Parameters Symbol Min Typ Max Unit
Optical Power Pout - - 100 mW
Wavelength 784 785 786 nm
Line Width  - 175 - MHz
Threshold Current Ith - 50 - mA
Forward Current If - 130 200 mA
Forward Voltage Vf - 1.3 2.2 V
Reverse Voltage Vr - - 2 V
Slope Efficiency P/I - 0.9 - mW/mA
Beam Divergence, Perpendic.  - 25 - °
Beam Divergence, Parallel || - 10 - °
Operating Temperature Top 0 - 40 °C
Central Stabilized Temperature Tc 15 - 35 °C
Stabilized Temperature Range Tr 15 - - °C
Storage Temperature Ts -20 - 70 °C
Emitter Size Es 1.5 x 3 µm
Coherence Length > 1m
Polarization Orientation TE
Dimension Dia 4.4x3.9mm

diode lasers

STC Series Lasers for Raman Spectroscopy

STC-FC-D series fiber coupled laser is specially designed for Raman spectroscopy, wavelength available from 375nm to 980 nm. The spectral linewidth is optional from 0.1 nm and 0.06 nm according to customers' actual requirements. Housed in ultra compact package, it is the perfect choice for Raman spectrometer, chemical and biological research, environmental science, jewelry appraisal, forensic appraisal, food/drug safety inspection, geological exploration, systems design and integration.

narrow linewidth lasers

Wavelength (nm) Output power (mW) Wavelength (nm) Output power (mW)
375 1~10 690 1~450
405 1~100 730 1~450
445 1~200 785 1~450
488 1~50 808 1~450
514.5 1~30 830 1~100
633 1~50 852 1~450
639 1~200 975 1~450
660 1~200 980 1~450

Note: The model of laser is STC-FC-D-X-Y, X stands for wavelength in nm and Y stands for laser power in mW. When placing the order, please indicate spectral line width (0.1 0r 0.06nm) and power stability (1%, 2% or 3%).

narrow linewidth laser narrow linewidth lasers

narrow linewidth laser narrow linewidth lasers

Detailed Specifications

Model STC-FC-D-375 STC-FC-D-405
Central wavelength (nm) 375±0.5 405±0.5
Spectral line width (nm) 0.1 (0.06, optional) 0.1 (0.06, optional)
Operating mode CW CW
Fiber core diameter 100μm, 0.22 NA 100μm, 0.22 NA
Fiber connector SMA905 SMA905
Output power after fiber (mW) >1, 2, …, 10 >1, 10, …, 100
Power stability (rms, over 4 hours) <1%, <2%, <3% <1%, <2%, <3%
Central wavelength stability (rms, over 2 hours) (pm) <10 <10
Noise of amplitude (rms, 1~20MHz) <1% <1%
Warm-up time (minutes) <5 <5
Operating temperature (℃) 20~30 20~30
Power supply Adaptor or 5VDC@5A Adaptor or 5VDC@5A
Expected lifetime (hours) 10000 10000
Warranty 1 year 1 year
Dimension and weight 169×115×52mm, 1.0kg 169×115×52mm, 1.0kg
Model STC-FC-D-514.5 STC-FC-D-633
Central wavelength (nm) 514.5±0.5 633±0.5
Spectral line width (nm) 0.1 (0.06, optional) 0.1 (0.06, optional)
Operating mode CW CW
Fiber core diameter 100μm, 0.22 NA 100μm, 0.22 NA
Fiber connector SMA905 SMA905
Output power after fiber (mW) >1, 2, …, 30 >1, 10, …, 50
Power stability (rms, over 4 hours) <1%, <2%, <3% <1%, <2%, <3%
Central wavelength stability (rms, over 2 hours) (pm) <10 <10
Noise of amplitude (rms, 1~20MHz) <1% <1%
Warm-up time (minutes) <5 <5
Operating temperature (℃) 20~30 20~30
Power supply Adaptor or 5VDC@5A Adaptor or 5VDC@5A
Expected lifetime (hours) 10000 10000
Warranty 1 year 1 year
Dimension and weight 169×115×52mm, 1.0kg 169×115×52mm, 1.0kg
Model STC-FC-D-808 STC-FC-D-852
Central wavelength (nm) 808±0.5 852±0.5
Spectral line width (nm) 0.1 (0.06, optional) 0.1 (0.06, optional)
Operating mode CW CW
Fiber core diameter 100μm, 0.22 NA 100μm, 0.22 NA
Fiber connector SMA905 SMA905
Output power after fiber (mW) >1, 100, …, 450 >1, 100, …, 450
Power stability (rms, over 4 hours) <1%, <2%, <3% <1%, <2%, <3%
Central wavelength stability (rms, over 2 hours) (pm) <10 <10
Noise of amplitude (rms, 1~20MHz) <1% <1%
Warm-up time (minutes) <5 <5
Operating temperature (℃) 20~30 20~30
Power supply Adaptor or 5VDC@5A Adaptor or 5VDC@5A
Expected lifetime (hours) 10000 10000
Warranty 1 year 1 year
Dimension and weight 169×115×52mm, 1.0kg 169×115×52mm, 1.0kg