A fiber lens with a long working distance for integrated coupling between laser diodes and single-mode fibers

Shiraishi, Kazuyuki; Oyama, N.; Matsumura, K.; Ohishi, Iwao; Suga, S.

doi:10.1109/50.405318

Cited by 52 publications

(17 citation statements)

References 12 publications

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“…In this paper, we systematically describe the hybrid technique that combines a scalar wide-angle FD-BPM and a scalar FD-TDM, and apply it to the analysis of a lensed coreless fiber (CF) [13]- [15]. After confirming the validity of the present technique, we analyze the propagating field in the CF.…”

mentioning

confidence: 86%

Analysis of a lensed coreless fiber by a hybrid technique combining FD-BPM and FD-TDM

Yamauchi

Nishio

Nakano

1998

J. Lightwave Technol.

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mentioning

confidence: 86%

Analysis of a lensed coreless fiber by a hybrid technique combining FD-BPM and FD-TDM

Yamauchi

Nishio

Nakano

1998

J. Lightwave Technol.

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“…Efficient coupling can be practically realized either using a separate lens or by the direct formation of the lens at the fiber end [2][3][4][5]. The use of discrete optical elements to form a lenslike structure directly on the fiber end is preferred because of the simplicity of fabrication, ease of packaging and economic factors.…”

Section: Introductionmentioning

confidence: 99%

Lensed plastic optical fiber with an aspherical fiber end formed by joining an aspherical plastic lens and a plastic optical fiber using laser transmission welding

Tseng

Chang

Huang

et al. 2011

Precision Engineering

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“…Very recently, a new direction in lensed fiber configuration has emerged to achieve low loss and long working distance (the air gap between LD and fiber) characteristics. [11][12][13] In this connection, a hyperbolic end shape on a graded index fiber is proposed for coupling with SMF (Ref. 14).…”

Section: Introductionmentioning

confidence: 99%

Coupling of a laser diode to single mode circular core graded index fiber via hyperbolic microlens on the fiber tip and identification of the suitable refractive index profile with consideration for possible misalignments

Mukhopadhyay¹,

Sarkar

2011

Opt. Eng

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With an aim to explore the suitable refractive index profile for maximum coupling, we present a theoretical investigation of coupling optics involving a laser diode and single mode circular core graded index fiber via a hyperbolic microlens on the fiber tip in absence and presence of any possible transverse and angular misalignments. By employing Gaussian field distributions for both the source and the fiber and also ABCD matrix for hyperbolic microlens under paraxial approximation, we formulate analytical expressions for the concerned coupling efficiencies. The investigations are performed for two different light-emitting wavelengths of 1.3 and 1.5 μm for such fibers with different profile exponents in refractive index profile. Further, it is observed that out of the studied refractive index profiles, the triangular index profile having the dispersionshifted merit comes out to be the most suitable profile to couple laser diode to single mode circular core graded index fiber for two wavelengths of practical interest. The analysis should find use in ongoing investigations for optimum launch optics for the design of hyperbolic microlens either directly on the graded index circular core single mode fiber tip or such fiber attached to single mode fiber to achieve a long working distance. C 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).

show abstract

A fiber lens with a long working distance for integrated coupling between laser diodes and single-mode fibers

Cited by 52 publications

References 12 publications

Analysis of a lensed coreless fiber by a hybrid technique combining FD-BPM and FD-TDM

Analysis of a lensed coreless fiber by a hybrid technique combining FD-BPM and FD-TDM

Lensed plastic optical fiber with an aspherical fiber end formed by joining an aspherical plastic lens and a plastic optical fiber using laser transmission welding

Coupling of a laser diode to single mode circular core graded index fiber via hyperbolic microlens on the fiber tip and identification of the suitable refractive index profile with consideration for possible misalignments

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