24 August 2012

Innolume launches next generation of quantum-dot diode lasers

Innolume GmbH of Dortmund, Germany, which manufactures quantum-dot (QD) diode lasers covering the 1064–1320nm spectrum, has launched the next generation of its LD-12XX-series laser diode.

While keeping output characteristics the same – i.e. 350mW of kink-free output power and a fiber Bragg grating (FBG)-stabilized spectrum in the 1180-1270nm wavelength range – the new LD-12XX-series of lasers has substantially improved wall-plug efficiency.

Compared with the previous generation, the main differentiation is a higher operating temperature of the laser chip, which has allowed the maximum wall-plug efficiency to be shifted to higher environmental temperatures. As a result, the wall-plug efficiency of the butterfly-packaged laser, which includes a TEC (thermo-electric cooler), exceeds 16% at a case temperature of 40°C - typical for the environment in PON (passive optical network) equipment racks - hence leading to a significant reduction in power consumption, it is reckoned.

“This optimization supports our customers in further improving their products already introduced to the market, and by that bring even more benefits of Raman-based GPON reach extension to network operators compared to conventional reach extenders based on semiconductor optical amplifiers (SOAs),” says managing director Guido Vogel.

Tags: Innolume Quantum-dot diode lasers

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