By introducing grooved comer reflectors at the cavity of an integrated twin-guide laser diode (ITG-LD), optical loss can be reduced, and travelling wave characteristics such as mode purity are simultaneously enhanced. The fabricated device shows single-mode operation at current levels up to 1.4 times threshold
Published in:
Electronics Letters
(Volume:38
,
Issue:
5
)
Date of Publication: 28 Feb 2002