Results 241 to 250 of about 435,527 (304)

Single-mode fiber coupler

Applied Optics, 1981
This paper describes the fabrication process and coupling principle of a single-mode fiber coupler. Precise etching properties of the fibers used are presented. Fiber etching is shown to result in smooth surfaces. Coupling is seen to vary with the refractive index of the material separating the fiber cores.
F J, Liao, J T, Boyd
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Expanded single mode fiber

OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171), 2001
We present a solution to maintain an expanded mode in the extremity of a single mode fiber by using a piece-of multimode step index fiber. With a 25 /spl mu/m spot size, the average connection loss is 0.36 dB (without Fresnel reflection) for a multimode section length inferior to 5 cm.
Chanclou, Philippe, Gravey, Philippe, Thual, Monique   +2 more
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Polarization maintaining Single-mode fibers

Conference on Lasers and Electro-Optics, 1981
Polarization-maintaining single-mode fibers will find application in acoustooptic sensors and fiber gyroscopes. In this study both stress-induced birefringence and elliptical core polarization-maintaining single-mode fibers were developed and evaluated.
F I, Akers, R E, Thompson
openaire   +2 more sources

Single Mode Fiber Optic Components

IEEE Journal of Quantum Electronics, 1981
In the process of studying single-mode fiber optic systems it became rapidly apparent a few years ago that it would be desirable to perform a number of functions with in-line components, which would allow for signal processing without the removal of the optical signal from the fiber.
R. Bergh, M. Digonnet, H. Lefevre, S. Newton, H. Shaw   +4 more
openaire   +1 more source

Single-mode fiber-optic polarizer

Optics Letters, 1980
A technique is presented for the fabrication of high-quality single-mode fiber-optic polarizers. Properties of polarizers made using this technique include extinction ratios in excess of 60 dB as well as low loss for the desired polarization.
R A, Bergh, H C, Lefevre, H J, Shaw
openaire   +2 more sources

Single-mode optical fiber cable

Applied Optics, 1979
A single-mode optical fiber cable was manufactured; loss increase characteristics due to cabling were evaluated. The existence of wide V-value regions without cabling loss increases is shown by a suitable selection of fiber parameters and optical wavelengths.
Y, Katsuyama, S, Mochizuki, K, Ishihara, T, Miyashita   +3 more
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Single-mode fiber measurements

IEEE Transactions on Instrumentation and Measurement, 1986
In this invited tutorial review paper on single-mode fiber measurements, I discuss the various methods used to characterize the following important transmission parameters of single-mode fibers: attenuation, cut-off wavelength, mode-field diameter and chromatic dispersion.
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Single-Mode Fiber-Type Polarizer

IEEE Transactions on Microwave Theory and Techniques, 1982
The simple and novel fabrication technique of the fiber-type polarizer has been demonstrated and the polarization characteristics of the polarizer have been investigated. The polarizer structure consists of the eccentric core and the metal coat on the thin buffer layer whose thickness is controlled by chemical etching.
T. Hosaka, K. Okamoto, J. Noda
openaire   +1 more source

Triangular-profile single-mode fiber

Optics Letters, 1982
A low-loss triangular-profile single-mode fiber is reported. The fiber loss at 1.3-1.55microm wavelengths is below 0.4 dB/km, and its zero-chromatic-dispersion wavelength is 1.402 microm.
M A, Saifi, S J, Jang, L G, Cohen, J, Stone   +3 more
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Single-mode optical fiber goniometer

Optics Letters, 1992
A two-element single-mode optical fiber goniometer that uses graded-index microlens receivers is presented that measures the angular orientation of a remote laser. The goniometer exhibits a sensitivity of 1.0 V/mrad and a calculated shot-noise-limited angular resolution of 1.0 nrad/ radicalHz.
M D, Mermelstein, J A, Blodgett
openaire   +2 more sources