1 550 nm CW LIGHT SOURCE
InGaAsP MQW-DFB LASER DIODE MODULE
WITH WAVELENGTH MONITOR

DESCRIPTION
The NX8570 Series is a 1 550 nm Multiple Quantum Well (MQW)
structured Distributed Feed-Back (DFB) laser diode module with wavelength
monitor function. This device is temperature tunable over 4 × 50 GHz
channels. Available at both C-band (1 530.334 to 1 565.087 nm) and L-band
(1 565.496 to 1 608.760 nm) ITU-T grid wavelengths.
This device is designed as CW light source and ideal for transmission
systems in which external modulators are used.
FEATURES
• Wavelength monitor function (Etalon Filter, Wavelength monitor PD)
• Optical output power : Pf = 20 mW MIN.
• Available for DWDM wavelengths based on ITU-T recommendations
(50 GHz grid, please refer to the ORDERING INFORMATION)
• 4 channel wavelength tunable capability for 50 GHz-spacing
(NX8570SC×××D)
• Internal thermo-electric cooler and isolator
• Hermetically sealed 14-pin butterfly package
• Polarization maintain fiber pigtail