Tunable Light Sources (Low)

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Tunable Light Sources




GouMax TLS-1000 tunable light sources are new-generation high performance continuous wave (CW)
tunable laser sources for use in various single band or combined band windows, ranging from 1050 nm
to 1660 nm. The innovative design employs the state-of-the-art tunable technology and gain continua-
tion in wide wavelength range. With no moving parts, the voltage-controlled wavelength tuning enables
rapid wavelength switching over the whole operating wavelength window.

This datasheet describes and defines GouMax’s low coherent CW tunable light sources with applica-
tions to test and measurement. They provide fast wavelength tuning, high power output, and high power
stability. GouMax tunable laser products support O-band, E-band, S-band, C-band, L-band, and other
single-band operation, as well as combined adjacent bands. A full-band tunable laser is also available,
covering 1250~1650 nm wavelength range, with seamless wavelength tuning.

System control and communication is provided though the RS232 interface, which allows users to dy-
namically set operating wavelength with ease.



Low Coherent O/E/S/C/L/Full-Band Tunable Light Sources                                                   

   Key Features                                                         Key Applications
  Power stability: 0.004 dB                                           Long-term process diagnosis
  High-speed scan: 400 nm/s                                       Optical coating monitoring
  Signal to source ASE ratio: > 70 dB                           Dynamic alignment optimization
  Low coherent light sources                                        Testing and measurements

                                         Product Specifications and Key Parameters
 
 
Parameters
Unit
O-Band
E-Band 
S-Band
C-Band 
L-Band
    Full-Band
Wavelength Range 1)
Lower limit
nm
1250
1350
1450
1525
1565
1250
Upper limit 
nm
1350
1450
1530
1570
1625
1650
Wavelength Tuning Resolution
pm
≤ 5 
≤ 20
Wavelength Stability 1), 2)
pm
≤ 5 
≤ 20
Linewidth (FWHM) 
nm
0.1 ~ 0.4
Minimum Power Output
mW
≥ 10 
≥ 8
≥ 5
≥ 12
≥ 10 
≥ 2
Signal to Total ASE Ratio 3)
dB
≥ 50
≥ 35
Signal to Source ASE Ratio 4)
dB
≥ 60
≥ 50
Absolute Wavelength Accuracy 2)
pm
≤ 20
≤ 100
Relative Wavelength Accuracy 2)
pm
± 20
± 80
Wavelength Repeatability 2)
pm
± 10
± 50
Power Repeatability 2),5)
dB
± 0.01
± 0.02
Power Stability 2),5)
dB
± 0.004
Maximum Sweep Speed 
nm/s
400
Step Tuning Time 
ms
50

    Notes:
1) Wavelength is calibrated as “Mean wavelength”.
2) When measured after warm-up time, measurements over 1 hour at 25±1°C.
3) ASE is measured within 30 nm wavelength range.
4) ASE is measured within 0.1 nm wavelength bandwidth.
5) For output power at > 0 dBm.
 

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