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

High-speed tunable microwave photonic notch filter based on phase modulator incorporated Lyot filter

Not Accessible

Your library or personal account may give you access

Abstract

A high-speed tunable microwave photonic notch filter with ultrahigh rejection ratio is presented, which is achieved by semiconductor optical amplifier (SOA)-based single-sideband modulation and optical spectral filtering with a phase modulator-incorporated Lyot (PM-Lyot) filter. By varying the birefringence of the phase modulator through electro-optic effect, electrically tuning of the microwave photonic notch filter is experimentally achieved at tens of gigahertz speed. The use of SOA-polarizer based single-sideband modulation scheme provides good sideband suppression over a wide frequency range, resulting in an ultrahigh rejection ratio of the microwave photonic notch filter. Stable filter spectrum with bandstop rejection ratio over 60 dB is observed over a frequency tuning range from 1.8 to 10 GHz. Compare with standard interferometric notch filter, narrower bandwidth and sharper notch profile are achieved with the unique PM-Lyot filter, resulting in better filter selectivity. Moreover, bandwidth tuning is also achieved through polarization adjustment inside the PM-Lyot filter, that the 10-dB filter bandwidth is tuned from 0.81 to 1.85 GHz.

© 2014 Optical Society of America

Full Article  |  PDF Article
More Like This
Frequency agile microwave photonic notch filter with anomalously high stopband rejection

David Marpaung, Blair Morrison, Ravi Pant, and Benjamin J. Eggleton
Opt. Lett. 38(21) 4300-4303 (2013)

High-speed wavelength tunable DPSK demodulation using a phase modulator based loop mirror filter

Jia Ge, Hanlin Feng, and Mable P. Fok
Opt. Lett. 39(12) 3500-3503 (2014)

Switchable microwave photonic filter between high Q bandpass filter and notch filter with flat passband based on phase modulation

Yuan Yu, Enming Xu, Jianji Dong, Lina Zhou, Xiang Li, and Xinliang Zhang
Opt. Express 18(24) 25271-25282 (2010)

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 (7)

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 (4)

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