$348.10 ships: Stock | item#: CQF915
- DFB Laser Diode with 20mW Output Power; Single Frequency Emission Profile
- SM Fiber Pigtail, FC/PC Connector
- 14-Pin Butterfly Package with TE Cooler, Monitor PD
- Product Condition: Brand New In-Box, Excess Stock
- Offered by: Optical Innovations, A Laser Lab Source Marketplace Seller
Sold & Supported in North America by: LaserDiodeSource.com, part of the Laser Lab Source Marketplace Group
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JDSU CQF915 1550.9nm DFB Laser Overview
The CQF915/208 is a high-power, directly modulated laser source in a butterfly package for metro WDM systems up to 100 km. The laser is pigtailed with a single-mode fiber and shows excellent thermal stability (e.g. wavelength drift with case temperature is much better than 1 pm/°C). Dependence of the optical isolation on case temperature is minimized by a cooled isolator.
The internal bias-T network and built-in monitor diode enable simple DC-bias conditioning and output power stabilization of the laser diode. Under small signal modulation conditions, the bandwidth of the device exceeds 3 GHz. Due to the intrinsic low chirp characteristic of the DFB laser, the device is especially suitable for digital transmission at 1550 nm. Based on standard single-mode fiber with non-zero dispersion, the maximum dispersion penalty at BER = 10-10 is less than 1.5 dB, for a total dispersion of up to 1800 ps/nm at 1550 nm. Long-term wavelength stability has been established by wavelength drift tests.
Proper Handling and Operation of DFB Lasers
DFB laser diodes are highly susceptible to damage from ESD and from temperatures exceeding their specified safe operating range. The user is advised to use care and proper ESD safety practices when handling them to avoid damage to the laser. A properly rated low noise current source, a low thermal resistance mount and a temperature controller should be used for optimal device performance and reliability.
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