Compound Waveguide Structures for Efficient Frequency Doubling in Diode Pumped Short Wavelength Microlasers


GREEN MICROLASER - CP96-194

Keywords: microelectronics, microlasers


Start Date: open / Duration: 36 months

[ participants / contact]


Objectivies and Approach

The aim of the project is to fabricate two different prototypes of intense (2 W; continuous wave) coherent light sources at a wavelength of 532 nm. The principle of both prototypes is the same, but the two devices differ in the materials used (KTP crystals and polymers) for second harmonic generation and the corresponding technology. In the devices, the second harmonic light is the result of lasing inside a cavity in the presence of diode pumped (10-20 Watt) Nd:YAG crystals. The cavity acts as such for the fundamental light only, and is built by selective mirrors, based on stacks of dielectric layers. Mode selection of the lasing mode at the fundamental frequency is accomplished by using an aperture or, in a later stage, a computer generated hologram.

The production of the two prototypes consists of the following steps:

Information Dissemination Activities and/or Exploitation

Further information is available from the project home page: http://www.el.utwente.nl/tdm/ldg/people/hsa/ecshg.htm.


Coordinator

University of Twente, NL

EU Partners

University of Twente, NL
CERAMOPTEC, D

Non-EU Partners

IOFAN-INFO, RU
IREE, CZ

CONTACT POINT

Dr. Hugo J.W.M. Hoekstra
Tel: +31 53 489 28 18
Fax: +31 53 430 95 47
E-mail: hsa@el.utwente.nl


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GREEN MICROLASER - CP96-194, May 1997


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html version of synopsis by Nick Cook