Spectral and spatial single mode emission from a photonic crystal distributed feedback laser

The authors report on the fabrication and characterization of photonic crystal distributed feedback lasers, which are a generalization of distributed feedback and angled distributed feedback lasers. Spectral and spatial mode selection is provided by a two-dimensional, rectangular lattice of etched air holes that is tilted relatively to the cleaved facets. InGaAs∕AlGaAs laser layers emitting around 1μm were used for the fabrication of the devices. The laser emits at a single wavelength with a side mode suppression ratio of 50dB. The emission is concentrated in a narrow far field, indicating that a coherent mode is formed over the entire width of the device.

[1]  David F. Welch,et al.  1.1 W CW, diffraction-limited operation of a monolithically integrated flared-amplifier master oscillator power amplifier , 1992 .

[2]  G. Erbert,et al.  High-power 980-nm DFB RW lasers with a narrow vertical far field , 2006, IEEE Photonics Technology Letters.

[3]  Christopher L. Felix,et al.  Mid-infrared photonic-crystal distributed-feedback laser with enhanced spectral purity and beam quality , 2001 .

[4]  Ron Kaspi,et al.  Broad-stripe midinfrared photonic-crystal distributed-feedback lasers with laser-ablation confinement , 2003 .

[5]  Jerry R. Meyer,et al.  Photonic-crystal distributed-feedback quantum cascade lasers , 2002 .

[6]  L. Coldren,et al.  Diode Lasers and Photonic Integrated Circuits , 1995 .

[7]  D.F. Welch,et al.  Electronically tunable, 1-W CW, near-diffraction-limited monolithic flared amplifier-master oscillator power amplifier (MFA-MOPA) , 1994, IEEE Photonics Technology Letters.

[8]  Igor Vurgaftman,et al.  Photonic-crystal distributed-feedback lasers , 2001 .

[9]  R. M. Lammert,et al.  980 nm high power, high slope efficiency distributed feedback lasers with nonabsorbing mirrors , 1998 .

[10]  G. Erbert,et al.  Modeling and measurements of the radiative characteristics of high-power /spl alpha/-DFB lasers , 2003 .

[11]  A. Forchel,et al.  Tunable photonic crystal coupled-cavity laser , 2004, IEEE Journal of Quantum Electronics.

[12]  V. Ligeret,et al.  Al-free active region (λ = 852nm) DFB laser diodes for atomic clocks and interferometry applications , 2006, SPIE Photonics Europe.