| Issue |
Europhys. Lett.
Volume 55, Number 4, August 2001
|
|
|---|---|---|
| Page(s) | 499 - 504 | |
| Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
| DOI | https://doi.org/10.1209/epl/i2001-00443-7 | |
| Published online | 01 December 2003 | |
Linewidth narrowing of a DFB semiconductor laser
at 
by optical injection of an Er:ZBLAN microspherical laser
Laboratoire d'Optronique (CNRS UMR6082) ENSSAT 6 rue de Kerampont,
22305 Lannion Cedex, France
Received:
2
April
2001
Accepted:
5
June
2001
An Er:ZBLAN microspherical laser has several laser lines around 1.55 μm with narrow bandwidths (~ 50-100 kHz). Such a laser is used as a master laser to optically inject a slave DFB semiconductor laser. We show that the slave can be easily locked by one microsphere mode only, enabling a spectral narrowing of the laser line (from 30 MHz to 67 kHz). We stress the selective process of light amplification and filtering effect by the DFB slave.
PACS: 42.55.Sa – Microcavity and microdisk lasers / 42.60.Da – Resonators, cavities, amplifiers, arrays, and rings / 42.60.Fc – Modulation, tuning, and mode locking
© EDP Sciences, 2001
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