Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Slow-light-assisted electrical tuning in hollow optical waveguide via carrier depletion in silicon and indium tin oxide subwavelength gratings

Not Accessible

Your library or personal account may give you access

Abstract

An electrically tunable hollow optical waveguide based on silicon-indium tin oxide (ITO) gratings is proposed to achieve phase modulation. The hollow waveguide consisting of Si-ITO gratings as top and bottom reflectors supports the propagation of slow-light mode with a high group index of 71 and a loss of 0.1 dB/cm in a narrow 1 µm thick air-core at 1550 nm. Carrier depletion in $p$-type Si and $n$-type ITO enables electrically controlled phase modulation of the guided slow-light mode. With the slow-light effect, 180° phase modulation is obtained in a short device length of 3 mm with a maximum reverse bias of ${-}{5}$ volts and 3 dB modulation bandwidth of 63 GHz.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Measuring the nonlinear optical properties of indium tin oxide thin film using femtosecond laser pulses

Mona Ali, Abdullah Shehata, Mohamed Ashour, Wael Z. Tawfik, Reinhold Schuch, and Tarek Mohamed
J. Opt. Soc. Am. B 37(11) A139-A146 (2020)

Slow light in narrow-core hollow optical waveguide with low loss and large bandwidth

Harpinder Kaur, Varun Kumar, and Mukesh Kumar
Appl. Opt. 55(35) 10119-10123 (2016)

Silicon carbide photonic platform based on suspended subwavelength waveguides

Francesco Garrisi, Ioannis Chatzopoulos, Robert Cernansky, and Alberto Politi
J. Opt. Soc. Am. B 37(11) 3453-3460 (2020)

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 Optica member, or as an authorized user of your institution.

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

Figures (4)

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

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

Equations (2)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved