Frequency-multiplexing light source with monolithically integrated distributed-feedback diode lasers
Journal Article
·
· IEEE J. Quant. Electron.; (United States)
The details of the fabrication and performances of a monolithically integrated frequency-multiplexing light source are presented. The light source consists of six GaAs-GaAlAs distributed-feedback (DFB) diode lasers with different grating periods and passive GaAlAs waveguides. By changing the grating periods by approximately 9 A, the lasers lase with different wavelengths with a separation of approximately 20 A. Laser output beams are guided and collected into a single launching waveguide through bends and confluence regions. The overall differential quantum efficiency of about 0.3 percent is obtained at the launching output terminal.
- Research Organization:
- Hitachi, Ltd., Tokyo
- OSTI ID:
- 5342069
- Journal Information:
- IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. QE-13:4; ISSN IEJQA
- Country of Publication:
- United States
- Language:
- English
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