Slab waveguide laser

PCT No. PCT/GB92/01186 Sec. 371 Date May 3, 1994 Sec. 102(e) Date May 3, 1994 PCT Filed Jul. 1, 1992 PCT Pub. No. WO93/01635 PCT Pub. Date Jan. 21, 1993A slab waveguide laser which provides efficient operation in predominantly a single mode operation includes a periodic modulation structure position...

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Bibliographische Detailangaben
Hauptverfasser:	ABRAMSKI, KRZYSZTOF M, COLLEY, ALAN D, BAKER, HOWARD J, HALL, DENIS R
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS DEVICES USING STIMULATED EMISSION ELECTRICITY
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Zusammenfassung:	PCT No. PCT/GB92/01186 Sec. 371 Date May 3, 1994 Sec. 102(e) Date May 3, 1994 PCT Filed Jul. 1, 1992 PCT Pub. No. WO93/01635 PCT Pub. Date Jan. 21, 1993A slab waveguide laser which provides efficient operation in predominantly a single mode operation includes a periodic modulation structure positioned between a slab waveguide and one of two cavity mirror reflectors. Alternatively, the periodic modulation structure may be included along the slab face. The periodicity of the periodic modulation structure is determined by the width of the waveguide to ensure that the periodic modulation is coherently self-imaged in one (or more) round trip(s) of the laser cavity. Because of the low loss propagation within the slab waveguide, overall cavity losses are minimized in both the lateral and transverse directions of the slab.