Pump-lasers for O-Band Raman Amplification

Large-scale fiber deployments of access networks are underway worldwide. Passive Optical Network (PON) technologies play an important part in meeting the subscribers’ increasing demand for high bandwidth services. The GPON standard, G.984.2 Amd1, with 28 dB loss budget limits 1:32 split GPON deployments to around 20 km reach. Compared to electrically powered extender boxes, a full passive solution is an attractive technology as discussed at the 2010 OFC exhibition (see “Economic Study Comparing Raman Extended GPON and Mid-span GPON Reach Extender” D. Nesset et al., 2010).

Innolume’s LD-12xx-series laser platform, is a new generation of pump laser that is based on the company’s proprietary Quantum Dot epitaxial technology. Designed as a pump source for O-band Raman amplification, the LD-12xx-series features a single mode output of 300 mW at 1100 mA, centered at 1240 nm or 1260 nm (other wavelengths on request). Packaged in a 14-pin butterfly, the laser is optionally equipped with a polarization maintaining fiber (PMF) as well as a fiber Bragg grating (FBG) to achieve high stability of output power and spectrum.