Text

Birefringent Axes Aligning System for Electro-Optic Probe Fabrication Using Polarization Maintaining Fiber

Fabrication method of a fiber optic electric field sensing probe using polarization maintaining fiber (PMF) is described including a birefringent axes aligning system. The sensing probe is basically a fiber-coupled Fabry-Perot resonator where a thin birefringent wafer of LiTaO 3 with an external cavity is mounted onto the end of PMF. An optical wave from a superluminescent laser diode after a linear polarizer parallel to the slow axis of the PMF is made to enter the LiTaO 3 crystal with polarization parallel to its extraordinary axis and the reflected optical wave is detected after passing through a polarization analyzer. By measuring a minimum value of a ratio of the reflected optical power at 90° to that of 0° of analyzer, we successfully demonstrated that the angular accuracy of the slow axis of the PMF with respect to the extraordinary axis of the LiTaO 3 can be evaluated. Aligning both axes precisely, the electro-optic effect associated with LiTaO 3 and polarization is optimized with greater stability. Long term stability of the fabricated PMF sensing probe was enhanced by about 3 times compared to that of a conventional single mode fiber one. As a result of uncertainty analysis, the method we proposed has an overall angular uncertainty of 1° when the used fiber optic components have polarization angle tolerance of 1°.

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.39 No.18 September 15 2021

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 5939-5946

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

BIREFRINGENCE
OPTICAL FIBER SENSORS
ELECTROMAGNETIC MEASUREMENT
ELECTROOPTIC EFFECTS

Info Detail Spesifik

DOI: 10.1109/JLT.2021.3091690

Pernyataan Tanggungjawab

Seung Kwan Kim, Dong-Joon Lee, Sun Do Lim, Young-Pyo Hong, No-Weon Kang

Versi lain/terkait

Lampiran Berkas

Komentar