Optical frequency domain ranging by a frequency-shifted feedback laser

Koichiro Nakamura; Takefumi Hara; Masato Yoshida; Toshiharu Miyahara; Hiromasa Ito

doi:10.1109/3.825877

Optical frequency domain ranging by a frequency-shifted feedback laser

Koichiro Nakamura, Takefumi Hara, Masato Yoshida, Toshiharu Miyahara, Hiromasa Ito

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Abstract

This paper describes the theoretical and experimental study of a new technique for optical frequency domain ranging (OFDR) by a frequency-shifted feedback (FSF) laser. In conventional OFDR, a frequency-chirped single-mode laser is used as a light source to convert a distance into a beat frequency, and a tradeoff exists between measurement range and resolution. The FSF laser output consists of periodically generated chirped frequency components whose chirp rate is faster than 100 PHz/s (P = 10¹⁵). By use of the FSF laser, the tradeoff is removed and long-distance high-resolution OFDR is realized. In the experiment, a distance of 18.5 km was measured with a resolution of 20 mm.

Original language	English
Pages (from-to)	305-316
Number of pages	12
Journal	IEEE Journal of Quantum Electronics
Volume	36
Issue number	3
DOIs	https://doi.org/10.1109/3.825877
Publication status	Published - 2000 Mar

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title = "Optical frequency domain ranging by a frequency-shifted feedback laser",

abstract = "This paper describes the theoretical and experimental study of a new technique for optical frequency domain ranging (OFDR) by a frequency-shifted feedback (FSF) laser. In conventional OFDR, a frequency-chirped single-mode laser is used as a light source to convert a distance into a beat frequency, and a tradeoff exists between measurement range and resolution. The FSF laser output consists of periodically generated chirped frequency components whose chirp rate is faster than 100 PHz/s (P = 1015). By use of the FSF laser, the tradeoff is removed and long-distance high-resolution OFDR is realized. In the experiment, a distance of 18.5 km was measured with a resolution of 20 mm.",

author = "Koichiro Nakamura and Takefumi Hara and Masato Yoshida and Toshiharu Miyahara and Hiromasa Ito",

note = "Funding Information: Manuscript received April 21, 1999; revised November 23, 1999. This work was supported in part by the Grant-in Aid from the Ministry of Education, Science, Sports, and Culture of Japan. The work of M. Yoshida was supported by the Foundation for the Promotion of Electrical Communication Engineering through a fellowship.",

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T1 - Optical frequency domain ranging by a frequency-shifted feedback laser

AU - Nakamura, Koichiro

AU - Hara, Takefumi

AU - Yoshida, Masato

AU - Miyahara, Toshiharu

AU - Ito, Hiromasa

N1 - Funding Information: Manuscript received April 21, 1999; revised November 23, 1999. This work was supported in part by the Grant-in Aid from the Ministry of Education, Science, Sports, and Culture of Japan. The work of M. Yoshida was supported by the Foundation for the Promotion of Electrical Communication Engineering through a fellowship.

PY - 2000/3

Y1 - 2000/3

N2 - This paper describes the theoretical and experimental study of a new technique for optical frequency domain ranging (OFDR) by a frequency-shifted feedback (FSF) laser. In conventional OFDR, a frequency-chirped single-mode laser is used as a light source to convert a distance into a beat frequency, and a tradeoff exists between measurement range and resolution. The FSF laser output consists of periodically generated chirped frequency components whose chirp rate is faster than 100 PHz/s (P = 1015). By use of the FSF laser, the tradeoff is removed and long-distance high-resolution OFDR is realized. In the experiment, a distance of 18.5 km was measured with a resolution of 20 mm.

AB - This paper describes the theoretical and experimental study of a new technique for optical frequency domain ranging (OFDR) by a frequency-shifted feedback (FSF) laser. In conventional OFDR, a frequency-chirped single-mode laser is used as a light source to convert a distance into a beat frequency, and a tradeoff exists between measurement range and resolution. The FSF laser output consists of periodically generated chirped frequency components whose chirp rate is faster than 100 PHz/s (P = 1015). By use of the FSF laser, the tradeoff is removed and long-distance high-resolution OFDR is realized. In the experiment, a distance of 18.5 km was measured with a resolution of 20 mm.

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JO - IEEE Journal of Quantum Electronics

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Optical frequency domain ranging by a frequency-shifted feedback laser

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