A compact digitally tunable seven-channel ring laser
- 7 August 2002
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 14 (6) , 753-755
- https://doi.org/10.1109/lpt.2002.1003082
Abstract
A seven-channel ring laser was realized by monolithic integration of a compact 4/spl times/4 PHASAR (de)multiplexer with four amplifiers in InP. The PHASAR was fabricated using a double-etch technique, enabling a total size of the ring laser of only 1/spl times/1.5 mm/sup 2/. Light was coupled out via the outer array waveguides. Reflections are minimized by using mode filters and angled facets. Threshold-currents of 70 mA and a sidemode suppression ratio of 40 dB were measured. In principle, a ring laser with N amplifiers can produce 3N-3 different wavelengths.Keywords
This publication has 10 references indexed in Scilit:
- Low-loss, compact, and polarization independent PHASAR demultiplexer fabricated by using a double-etch processIEEE Photonics Technology Letters, 2002
- 50 channel and 50 GHz multi-wavelength laser sourcePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2001
- 40-wavelength rapidly digitally tunable laserIEEE Photonics Technology Letters, 1999
- Multi Wavelength Lasers fabricated using Selective Area Chemical Beam EpitaxyPublished by Optica Publishing Group ,1999
- Spatial mode filters realized with multimode interference couplersOptics Letters, 1996
- Compact InP-based ring lasers employing multimode interference couplers and combinersApplied Physics Letters, 1994
- A 16*1 wavelength division multiplexer with integrated distributed Bragg reflector lasers and electroabsorption modulatorsIEEE Photonics Technology Letters, 1993
- Monolithic integration of multiwavelength compressive-strained multiquantum-well distributed-feedback laser array with star coupler and optical amplifiersElectronics Letters, 1992
- A 1.54- mu m monolithic semiconductor ring laser: CW and mode-locked operationIEEE Photonics Technology Letters, 1992
- Semiconductor lasers for coherent optical fiber communicationsJournal of Lightwave Technology, 1990