Abstract

We report a single-mode P-P-p-i-n-N-N GaAs/AlGaAs W waveguide phase modulator with a high phase modulation efficiency and a low propagation loss. The phase modulator with a W-shaped refractive-index profile utilizes a novel epilayer structure to reduce the propagation loss associated with doped layers and to obtain a phase modulation efficiency larger than those of P-i-N double heterostructure modulators. The phase shift and propagation loss were measured with a Fabry–Perot resonance method at 1.31-μm wavelength. A phase modulation efficiency as high as 34.6°/V mm was measured for TE polarized light. Also propagation losses of less than 0.6 dB/cm were achieved. As a result, the W waveguide phase modulator that exhibits a high phase modulation efficiency and a low propagation loss have been experimentally realized for the first time as far as we know.

© 1998 Optical Society of America

Full Article  |  PDF Article
Related Articles
Optical properties of (Al,Ga)As/GaAs multiple quantum well planar waveguides and the fabrication of single-mode rib waveguides and directional couplers by reactive ion etching

Myles D. A. MacBean, Osamu Mikami, Christopher D. W. Wilkinson, Prakash Mistry, and John S. Roberts
Appl. Opt. 26(13) 2625-2630 (1987)

Simplified analysis and structural design for ridge MOS optical waveguides

Chunsheng Ma and Shiyong Liu
Appl. Opt. 29(30) 4435-4440 (1990)

Single-mode GaAs/AlGaAs W waveguides with a low propagation loss

Young Tae Byun, Kyung Hyun Park, Sun Ho Kim, Sang Sam Choi, and Tong Kun Lim
Appl. Opt. 35(6) 928-933 (1996)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription