Open AccessNarrow linewidth operation of buried-heterostructure photonic crystal nanolaser
Author(s) -
Jimyung Kim,
Akihiko Shinya,
Kengo Nozaki,
Hideaki Taniyama,
ChinHui Chen,
Tomonari Sato,
Shinji Matsuo,
Masaya Notomi
Publication year - 2012
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.011643
Subject(s) - laser linewidth , nanolaser , materials science , optoelectronics , photonic crystal , laser , optics , semiconductor laser theory , photonics , lasing threshold , semiconductor , physics , wavelength
We investigate the spectral linewidth of a monolithic photonic crystal nanocavity laser. The nanocavity laser is based on a buried heterostructure cavity in which an ultra-small InGaAsP active region is embedded in an InP photonic crystal. Although it was difficult to achieve narrow linewidth operation in previously reported photonic crystal nanocavity lasers, we have successfully demonstrated a linewidth of 143.5 MHz, which is far narrower than the cold cavity linewidth and the narrowest value yet reported for nanolasers and photonic crystal lasers. The narrow linewidth is accompanied by a low power consumption and an ultrasmall footprint, thus making this particular laser especially suitable for use as an integrated multi-purpose sensor.