Low Frequency Characterization Of 1.3 µm C3 Lasers

As fiber optic sensors are configured to achieve greater sensitivity and flexibility, compatible low loss laser sources at 1.3 μm and 1.55μm may be required. Similarly, the operation of several sensors from a single multiplexed laser source is also of interest. The high tuning rates achievable with cleaved coupled cavity, C3, semiconductor lasers make these lasers attractive candidates for future sensor applications.1 In this paper, we report the low frequency characteristics of a buried crescent C3 laser operating at 1.3 μm.