In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 31, No. 7R ( 1992-07-01), p. 2104-
Abstract:
Conversion efficiency enhancement techniques have been demonstrated for quasiphase matched (QPM) second-harmonic generation (SHG). First, we describe a technique for confining the high fundamental optical power density in a waveguide with a domain-inverted grating (SHG waveguide), i.e., a technique for monolithic integration, the SHG waveguide, and a distributed Bragg reflector (DBR). A 40% increase in the conversion compared with a conventional device without a DBR was achieved under QPM conditions. We also describe a method of automatically satisfying QPM conditions, using a laser diode (LD) with antireflection-coated facets. We used the InP/InGaAsP LD and confirmed that the LD oscillated at a wavelength satisfying the QPM conditions. The normalized conversion efficiency was 4.1%·W -1 ·cm -2 .
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.31.2104
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1992
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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