High power laser High Power 1550nm ITU CW DFB Laser WDM JDSU CQF935/708
The JDS Uniphase CQF935/708 series laser is specifically developed for wavelength division multiplexing (WDM) systems, where it is used in combination with an external modulator, such as the LiNbO3-based Mach-Zehnder. Selected wavelengths comply with ITU recommendations,both in range(1527.61 to 1610.06nm) and in channel definition, thus adhering to the 50 GHz grid (0.4nm) relative to a frequency of 193.1 THz (i.e., a wavelength of 1552.52nm). Each laser's wavelength is accurately measured,and the laser itself is accompanied by a datasheet with the laser performance at the temperature T,where the required wavelength channel is reached. The CQF935/708 shows high side mode suppression ratios, very low relative intensity noise, and small linewidths. It is available in a standard 14-pin butterfly package equipped with a polarization maintaining fiber to facilitate coupling to the modulator, and shows superb thermal stability.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Laser Diode — Radiant output power from pigtail Ppeak [Limiting Values] | max:100 mW |
| Laser Diode — Reverse voltage VR [Limiting Values] | max:2.0 V |
| Laser Diode — Forward current IF [Limiting Values] | max:600 mA |
| Monitor Diode — Reverse voltage VR [Limiting Values] | max:20 V |
| Monitor Diode — Forward current IF [Limiting Values] | max:10 mA |
| Module — Storage temperature range Tstg [Limiting Values / Note1:Telcordia GR-468-CORE/MIL-STD-883 mechanical/environmental test] | min:-40 °C；max:85 °C |
| Module — Case operating temperature range Top [Limiting Values / Cooler active] | min:0 °C；max:65 °C |
| Fiber Pigtail — Bending radius R [Limiting Values] | min:35 mm |
| Fiber Pigtail — Tensile strength fiber to case F [Limiting Values / Note1:Telcordia GR-468-CORE/MIL-STD-883 mechanical/environmental test] | max:5 N |
| Radiant output power from pigtail Po [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / 20°C<Tλ<35°C] | min:40 mW |
| Operating current Iop [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified] | typical:250 mA；max:400 mA |
| Laser Diode — Threshold current Ith [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified] | typical:25 mA；max:40 mA |
| Laser Diode — Central wavelength(ITU grid) λc [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified] | min:1527 nm；max:1610 nm |
| Laser Diode — Laser set temperature for λc Tλ [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified] | min:20 °C；max:35 °C |
| Laser Diode — Forward voltage VF [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified] | max:2.5 V |
| Laser Diode — Side mode suppression ratio SMSR [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified] | min:30 dB；typical:45 dB |
| Laser Diode — Optical isolation ISO [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified] | min:30 dB；typical:35 dB |
| Laser Diode — Relative intensity noise RIN [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / 20–1000MHz] | max:-160 dB/Hz |
| Laser Diode — Spectral linewidth Δλ [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / Full width,half maximum(FWHM);literal source symbolΔλ] | max:1 MHz |
| Laser Diode — Wavelength drift with case temp. [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / 0°C<Tcase<65°C] | max:0.001 nm/°C |
| Laser Diode — Wavelength temperature tunability [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / 20°C<Tλ<35°C] | min:0.07 nm/°C；max:0.12 nm/°C |
| Monitor Diode — Monitor diode responsivity R [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / VR=10V;87.5 is actual Maximum column] | min:5 µA/mW；max:87.5 µA/mW |
| Monitor Diode — Dark current Imd [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / VR=10V] | max:0.1 µA |
| Monitor Diode — Temperature tracking error TE [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / VR=10V;0°C<Tcase<65°C] | max:10 % |
| Thermistor — Resistance Rth [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / Tth=25°C] | min:9.5 kΩ；typical:10 kΩ；max:10.5 kΩ |
| Thermistor — Thermistor constant B [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified] | min:3800 K；max:4100 K |
| Thermoelectric Cooler — Cooler current Icool [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / ΔT=45°C] | max:1.3 A |
| Thermoelectric Cooler — Cooler voltage Vcool [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / ΔT=45°C] | max:3.7 V |
| Polarization Maintaining Fiber Pigtail — Fiber type [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / Note2;equivalent permitted] | Fujikura SM.15-P-8/125-UV/UV400 PANDA or equivalent |
| Polarization Maintaining Fiber Pigtail — Mode field diameter Ømf [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / Note2] | min:9.5 µm；max:11.5 µm |
| Polarization Maintaining Fiber Pigtail — Cladding diameter Øcl [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / Note2] | min:122 µm；max:128 µm |
| Polarization Maintaining Fiber Pigtail — Diameter of secondary coating Øsc [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / Note2] | min:380 µm；max:420 µm |
| Polarization Maintaining Fiber Pigtail — Diameter of loose tube ØLT [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / Note2] | min:0.8 mm；max:1.0 mm |
| Polarization Maintaining Fiber Pigtail — Length of loose tube lLT [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / Note2] | min:0.9 m |
| Polarization Maintaining Fiber Pigtail — Polarization extinction ratio ER [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / Note2;E-field along slow axis] | min:18 dB；typical:20 dB |
| Polarization Maintaining Fiber Pigtail — Length of pigtail [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / Note2] | min:1 m |
| Reliability — Long term wavelength drift(Median Life) MLλ [Characteristics:Tchip=Tλ,Tamb=25°C,Po=40mW unless otherwise specified / EOL:Δλ=0.2nm;ML=Median Life,EOL=End Of Life;Note1:mechanical/environmental test,not a lifetime warranty] | typical:300 years |
Applications
Key Features
Datasheet
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Supplier Information
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