Highly attenuating external cavity for picosecond-tunable pulse generation from gain/Q-switched laser diodes
The authors analyze in detail the behavior of gain/Q-switched Fabry-Perot laser diodes coupled to a highly attenuating, selective external cavity. Radical differences are shown as compared to the case of strong external feedback used in mode locking. A strong analogy with the case of pulsed lasers w...
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Published in | IEEE journal of quantum electronics Vol. 29; no. 6; pp. 1693 - 1700 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
New York, NY
IEEE
01.06.1993
Institute of Electrical and Electronics Engineers |
Subjects | |
Online Access | Get full text |
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Summary: | The authors analyze in detail the behavior of gain/Q-switched Fabry-Perot laser diodes coupled to a highly attenuating, selective external cavity. Radical differences are shown as compared to the case of strong external feedback used in mode locking. A strong analogy with the case of pulsed lasers with a small quasi-monochromatic injection signal is indicated. Strong chirping is observed in single-mode emission, leading to tunable picosecond pulses after compression. Experiments are carried out on two types of devices. Picosecond pulses with very high tunability (40 nm) and repetition rates (>10 GHz) are obtained from 1.3- mu m gain-switched laser diodes, the minimum pulsewidth being 2.5 ps.< > |
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ISSN: | 0018-9197 1558-1713 |
DOI: | 10.1109/3.234423 |