Journal ArticleDOI
Efficient power combiner for multiplexing multiple sources to single‐fiber optical systems
TLDR
In this article, the authors demonstrate the combining of optical power from three input optical fibers to a single trunk fiber using fibers of different core/cladding diameters in a biconical taper configuration.Abstract:
Efficient combining of optical power from three input optical fibers to a single trunk fiber is demonstrated using fibers of different core/cladding diameters in a biconical taper configuration. The combiners have insertion loss less than 1 dB and optical isolation greater than −50 dB.read more
Citations
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Journal ArticleDOI
Highly selective evanescent modal filter for two-mode optical fibers.
TL;DR: Efficient and selective coupling between a single-mode fiber and the LP(11) mode of a double-mode Fiber is demonstrated in an evanescent directional coupler that has application as a modal filter for the construction of in-line all-fiber optical components.
Journal ArticleDOI
Optical communications research and technology: Fiber optics
TL;DR: The current state of the art of fiber optics components is reviewed and projected uses of fiber optical technology are detailed, and a brief discussion is presented describing the fundamentals of light guiding and the factors which affect the performance of light guides.
PatentDOI
Modal-insensitive biconical taper couplers
TL;DR: The modal-insensitive coupler as mentioned in this paper consists of a number of optical multimode fiber lengths, each fiber length having a core of initial predetermined cross-sectional area, and the fiber lengths are fused together in a coupling section such that the cores of the fiber length have a reduced cross-surface area in the coupling section which supports a minimum number of modes of optical energy at a predetermined wavelength.
Journal ArticleDOI
Tuned-port twin biconical-taper fiber splitters: fabrication from dissimilar low-mode-number fibers.
TL;DR: Fused biconical-fiber splitters have been fabricated from dissimilar low-mode-number optical fibers and a tuned condition characterized by low insertion loss and strong optical coupling between modes of the fibers forming the splitter has been demonstrated.
Journal ArticleDOI
Fiber-optic communication in the wavelength-division multiplex mode
TL;DR: The physical design, operating principle, and properties of the various microoptical wavelength-division multiplex and demultiplex couplers are surveyed, and the criteria on which their practical application depend are defined.
References
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PatentDOI
Low loss access coupler for multimode optical fiber distribution systems
TL;DR: The low loss access coupler includes two multimode optic fibers, each having a biconical taper section, which are fused together to provide optical coupling between the fibers.
Journal ArticleDOI
Microlenses for coupling junction lasers to optical fibers.
TL;DR: A novel photolithographic technique was used to make hemispherical and hemicylindrical microlenses, with diameters between 4 microm and 10 microm, from commercially available negative type photoresist that is transparent at ir laser wavelengths.
Journal ArticleDOI
Wavelength multiplexing in multimode optical fibers.
TL;DR: This paper considers various multiplex system designs that might be used with multimode fiber transmission systems, and the required multiplexer size and material properties are calculated as functions of the basic parameters of the fiber system.
Journal ArticleDOI
Frequency multiplexing light source with monolithically integrated distributed‐feedback diode lasers
K. Aiki,M. Nakamura,J. Umeda +2 more
TL;DR: In this paper, a frequency multiplexing light source is realized by monolithically integrating GaAs•GaAlAs distributedfeedback diode lasers with different grating periods and passive waveguides on a GaAs substrate.
Journal ArticleDOI
Measurement of nonlinear distortion in photodiodes
TL;DR: In this article, the 2nd-order nonlinear distortion of avalanche photodiodes (TIXL-55, C-20817) was found to be less than −60 dB for an incident average optical power of −20 dBm modulated at a peak depth of 75%.