Multifrequency laser having integrated amplified output coupler for high-extinction-ratio modulation with single-mode behavior
Photonics Technology Letters, IEEE（1998）
摘要
We present a 16-channel waveguide grating router multifrequency laser that can be modulated with a 250-MHz bandwidth, a 50-dB extinction ratio, and constant single-mode behavior, We demonstrate a means for immunizing the single-mode lasing against unwanted backreflections from the integrated modulation amplifier, The laser is especially suitable for fiber dispersion-map measurements.
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关键词
diffraction gratings,electro-optical modulation,laser modes,optical couplers,optical fibre dispersion,optical transmitters,semiconductor lasers,telecommunication network routing,waveguide lasers,16-channel waveguide grating router multifrequency laser,250 MHz,MHz bandwidth,constant single-mode behavior,extinction ratio,fiber dispersion-map measurements,high-extinction-ratio modulation,integrated amplified output coupler,integrated modulation amplifier,multifrequency laser,single-mode behavior,singlemode lasing,unwanted backreflections
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