Open AccessRegrowth-Free Single Mode Laser Based on Dual Port Multimode Interference Reflector
Author(s) -
Niall P. Kelly,
Mohamad Dernaika,
Ludovic Caro,
Padraic E. Morrissey,
Alison H. Perrott,
Justin K. Alexander,
Frank H. Peters
Publication year - 2017
Publication title -
ieee photonics technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.81
H-Index - 157
eISSN - 1941-0174
pISSN - 1041-1135
DOI - 10.1109/lpt.2016.2637565
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
This letter demonstrates an InP-based photonic integrated circuit that utilizes an etched facet and a dual port multimode interference reflector to create a lasing cavity. The laser was fabricated using UV lithography and did not require any epitaxial regrowth. A single deep etched slot produced single mode behavior due to the coupled cavity effect. By varying the bias of the two sub cavities, mode selectivity with a side mode suppression ratio of 30 dB is demonstrated.