Abstract
A wavelength-tunable distributed feedback (DFB) laser array integrated with a funnel combiner is described. Two types of optical combiner, namely a multimode interferometer (MMI) combiner and a funnel combiner, are compared theoretically and experimentally. It is shown that the funnel combiner is superior in terms of wavelength dependence and fabrication tolerance. The laser module covers the full C-band wavelength range (∼38 nm), and a high fiber output power of 40 mW (16 dBm) is obtained with stable single-mode operation.
Original language | English |
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Pages (from-to) | 1089-1094 |
Number of pages | 6 |
Journal | IEEE Journal on Selected Topics in Quantum Electronics |
Volume | 13 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2007 Sep 1 |
Externally published | Yes |
Keywords
- Distributed feedback (DFB) lasers
- Optical fiber communications
- Optical transmitters
- Tunable lasers
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering