Reflection loss of laser mode from tilted end mirror

Journal Article · Tue Jan 31 23:00:00 EST 1989 · J. Lightwave Technol.; (United States)

DOI:https://doi.org/10.1109/50.17776· OSTI ID:5940694

Marcuse, D

The authors consider the reflection of the lowest order guided TE mode of a slab waveguide from a tilted end mirror. This problem is applicable to injection lasers if the slab is regarded as an effective refractive index approximation of the channel or ridge waveguide of the laser structure. For a mode width of 3 /mu/m, 5% mirror tilt results in reflection losses in excess of 25 dB for modes of 6/mu/m width, 5/sup 0/ mirror tilt causes reflection losses in excess of 45 dB. For small tilt angles the results of this calculation agree with those based on a Gaussian approximation of the guided mode. For larger angles, and hence higher reflection losses, the results depart significantly from the Gaussian approximation.

• Research Organization: AT and T Bell Labs., Holmdel, NJ (USA)
• OSTI ID: 5940694
• Journal Information: J. Lightwave Technol.; (United States), Journal Name: J. Lightwave Technol.; (United States) Vol. 7:2; ISSN JLTED
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CALCULATION METHODS
COATINGS
DESIGN
GAUSSIAN PROCESSES
LASERS
MIRRORS
PERFORMANCE
REFLECTIVE COATINGS
SLABS
WAVEGUIDES