Polarization stabilizer using liquid crystal rotatable waveplates

Takafumi Chiba, Yasuo Ohtera, Shojiro Kawakami

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)


In standard single-mode fiber (SMF) transmission systems, a polarization stabilizer is useful for optimizing the performance of polarization dependent systems or devices. We have proposed and developed a polarization stabilizer which employs liquid crystal (LC) rotatable waveplates. It has a simple configuration, no moving parts, and endless-control characteristic. High polarization stability was confirmed under various state of polarization (SOP) fluctuations. The maximum response speed of the polarization stabilizer is about 900°/s, but this can be increased by improving the controller. We applied the polarization stabilizer to a semiconductor optical amplifier (SOA) having polarization dependence, and achieved good gain stabilization.

Original languageEnglish
Pages (from-to)885-890
Number of pages6
JournalJournal of Lightwave Technology
Issue number5
Publication statusPublished - 1999 May
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Polarization stabilizer using liquid crystal rotatable waveplates'. Together they form a unique fingerprint.

Cite this