Fabrication of widely tunable ridge waveguide DBR lasers for WDM-PON

2014 ◽  
Vol 12 (9) ◽  
pp. 091402-91405 ◽  
Author(s):  
Liangshun Han Liangshun Han ◽  
Song Liang Song Liang ◽  
Can Zhang Can Zhang ◽  
Liqiang Yu Liqiang Yu ◽  
Lingjuan Zhao Lingjuan Zhao ◽  
...  
Keyword(s):  
Ridge Waveguide ◽  
Dbr Lasers ◽  
Wdm Pon

Quantum Well Intermixing Using Sputtered Silica for Photonic Integrated Circuits Operating Around 1550 nm

1999 ◽  
Vol 607 ◽  
Author(s):  
John H. Marsh ◽  
A. Catrina Bryce ◽  
Olek P. Kowalski ◽  
Stewart D. McDougall ◽  
Maolong Ke ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Quantum Well ◽  
Quantum Wells ◽  
Ridge Waveguide ◽  
Field Pattern ◽  
Free Carrier Absorption ◽  
Low Loss ◽  
Quantum Well Intermixing ◽  
Dbr Lasers ◽  
Etched Surface

AbstractA novel technique for quantum-well intermixing has been developed using sputtered silica. The technique relies on the generation of point defects via plasma induced damage during the deposition of the sputtered silica. The presence of the defects before annealing allows the intermixing to take place at lower annealing temperatures (>200 C) than those needed for conventional impurity free vacancy disordering. The low annealing temperature has allowed the technique to be applied to InP based quantum well systems such as InGaAs/InGaAsP and InGaAs/InGaAlAs, and provides a simple and reliable process for the fabrication of both wavelength tuned lasers and monolithically integrated devices operating around 1550 nm.Wavelength tuned broad area oxide stripe lasers have been demonstrated in InGaAs-InAlGaAs and InGaAs-InGaAsP quantum wells. Oxide stripe lasers with integrated intermixed slab waveguides have enabled the production of a narrow (3 degrees), single lobed far field pattern in InGaAs-InAlGaAs devices. Extended cavity ridge waveguide lasers operating around 1550 nm have been demonstrated with low loss (alpha = 4.1/cm) waveguides, the loss beinglimited by free carrier absorption in the waveguide cladding layers. Ridge waveguide, deeply etched surface grating DBR lasers were fabricated both with and without intermixing the grating section. Measurements show that a significant improvement in performance is obtained from the DBR lasers when the grating section is intermixed.The intermixing technique has been further developed in order to realise 3 bandgaps on a chip in a single annealing step for the integration of amplifiers, passive waveguides and bandgap tuned electro-absorption modulators. Modulation depths of 25 dB were measured from the modulators.The results illustrate that the technique can routinely be used to fabricate low-loss optical interconnects and bandgap tuned devices, offering a very promising route toward photonic integration.

Ridge waveguide sampled grating DBR lasers with 22-nm quasi-continuous tuning range

1998 ◽  
Vol 10 (9) ◽  
pp. 1211-1213 ◽  
Author(s):  
B. Mason ◽  
G.A. Fish ◽  
S.P. DenBaars ◽  
L.A. Coldren
Keyword(s):  
Tuning Range ◽  
Ridge Waveguide ◽  
Continuous Tuning ◽  
Sampled Grating ◽  
Dbr Lasers

Low-threshold narrow-linewidth InGaAs-GaAs ridge-waveguide DBR lasers with first-order surface gratings

1997 ◽  
Vol 9 (2) ◽  
pp. 149-151 ◽  
Author(s):  
R.M. Lammert ◽  
J.S. Hughes ◽  
S.D. Roh ◽  
M.L. Osowski ◽  
A.M. Jones ◽  
...  
Keyword(s):  
Ridge Waveguide ◽  
Narrow Linewidth ◽  
First Order ◽  
Low Threshold ◽  
Dbr Lasers ◽  
Order Surface

InGaAsP-InP ridge-waveguide DBR lasers with first-order surface gratings fabricated using CAIBE

1997 ◽  
Vol 9 (11) ◽  
pp. 1445-1447 ◽  
Author(s):  
R.M. Lammert ◽  
A.M. Jones ◽  
C.T. Youtsey ◽  
J.S. Hughes ◽  
S.D. Roh ◽  
...  
Keyword(s):  
Ridge Waveguide ◽  
First Order ◽  
Dbr Lasers ◽  
Order Surface
Sign in / Sign up

Export Citation Format

Share Document