loading
Documents

Research.Publish.Connect.

Paper

Paper Unlock

Author: Dennis Bonsendorf

Affiliation: LIMO Lissotschenko Mikrooptik GmbH and Ruhr-Universität Bochum, Germany

Abstract: High power direct diode lasers, as they are used in material processing or photonic pumping applications, are sensitive to back reflected light, which is usually called “optical feedback”. This feedback is generated unintendedly by optical surfaces of laser processing tools like cutting heads or by the processed surface itself. In material cutting or welding processes copper or aluminum are highly reflective materials (Steen, 2010) and photonic crystals can be origin of unwanted radiation even at changed wavelength (Dowley, 1998). Inside the laser system the beam transformation or the fiber coupling unit generates optical feedback. In some applications optical feedback is actually desired as part of the design. Volume Bragg gratings (VBG) reduce the spectral width by utilization of feedback. However, there is a price to pay, when the reflected light reaches the emitter of the laser diodes it can result in spectral modulation, lifetime reduction or catastrophic optical (mirror) damag e (COMD). (More)

PDF ImageFull Text

Download
CC BY-NC-ND 4.0

Sign In Guest: Register as new SciTePress user now for free.

Sign In SciTePress user: please login.

PDF ImageMy Papers

You are not signed in, therefore limits apply to your IP address 18.206.16.123

In the current month:
Recent papers: 100 available of 100 total
2+ years older papers: 200 available of 200 total

Paper citation in several formats:
Bonsendorf, D. (2015). High Power Laser Diodes with Optical Feedback - Contribution to Doctoral Consortium.In Doctoral Consortium - DCPHOTOPTICS, (PHOTOPTICS 2015) ISBN , pages 47-54

@conference{dcphotoptics15,
author={Dennis Bonsendorf.},
title={High Power Laser Diodes with Optical Feedback - Contribution to Doctoral Consortium},
booktitle={Doctoral Consortium - DCPHOTOPTICS, (PHOTOPTICS 2015)},
year={2015},
pages={47-54},
publisher={SciTePress},
organization={INSTICC},
doi={},
isbn={},
}

TY - CONF

JO - Doctoral Consortium - DCPHOTOPTICS, (PHOTOPTICS 2015)
TI - High Power Laser Diodes with Optical Feedback - Contribution to Doctoral Consortium
SN -
AU - Bonsendorf, D.
PY - 2015
SP - 47
EP - 54
DO -

Login or register to post comments.

Comments on this Paper: Be the first to review this paper.