Flexible laser diode trace gas sensor based on cavity ringdown spectroscopy with an optical fiber-coupled high-finesse external-cavity diode laser

2009 ◽  
Vol 96 (4) ◽  
pp. 741-744 ◽  
Author(s):  
J. Sato ◽  
M. Kikukawa ◽  
S. Yamaguchi ◽  
M. Endo ◽  
K. Tei ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Gas Sensor ◽  
Diode Laser ◽  
Laser Diode ◽  
External Cavity ◽  
External Cavity Diode Laser ◽  
Trace Gas ◽  
Cavity Ringdown Spectroscopy ◽  
Cavity Ringdown ◽  
High Finesse

Note: A compact external-cavity diode laser, using feedback from an optical fiber

2017 ◽  
Vol 88 (9) ◽  
pp. 096102 ◽  
Author(s):  
S. Potnis ◽  
G. J. A. Edge ◽  
S. Jackson ◽  
M. Verma ◽  
A. C. Vutha
Keyword(s):  
Optical Fiber ◽  
Diode Laser ◽  
External Cavity ◽  
External Cavity Diode Laser

scholarly journals Self-Injection Locking of a Distributed Feedback Laser Diode Using a High-Finesse Fabry-Perot Microcavity

2019 ◽  
Vol 9 (21) ◽  
pp. 4616
Author(s):  
Xing Wei ◽  
ZhenDa Xie ◽  
Shi-Ning Zhu
Keyword(s):  
Diode Laser ◽  
Laser Diode ◽  
External Cavity ◽  
Longitudinal Mode ◽  
Injection Locking ◽  
Distributed Feedback ◽  
Beat Note ◽  
Lasing Wavelength ◽  
Fabry Perot ◽  
High Finesse

Optical microcavities have been widely used in nonlinear optics, quantum optics, and laser technologies. Here we demonstrate the self-injection locking of a distributed feedback diode laser using home-made high-finesse Fabry-Perot microcavity. The Fabry-Perot microcavity is fabricated from an x-cut lithium niobate crystal with highly reflective coatings. Frequency pulling effect can be observed for a successful locking, and results in a single-longitudinal mode lasing with narrow linewidth. The lasing wavelength and output power are found robust to the laser-diode current and temperature variations, in comparison to the free-running case. We further characterize the laser linewidth with beat note measurement with a high-performance external cavity diode laser, with beat-note linewidth of 601.85 kHz. This results shows a new method for laser frequency stabilization in a simple setup, and may find applications in telecommunication and spectroscopy.

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