Fabrication of low-loss 3 dB couplers with multimode optical fibres

Tsujimoto, Yoshinobu; Serizawa, Hiroyuki; Hattori, K.; Fukai, Masakazu

doi:10.1049/el:19780105

Cited by 26 publications

(3 citation statements)

References 3 publications

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“…최종적으로 제작된 광섬유형 방향성 결합기의 광 분기 율을 살펴봤을 때, 물속에서 50:50, 공기 중에서 약 85:15 로 광 분기를 일으키며, 최종 광 손실은 물속에서 약 0.27 dB, 공기 중에서 0.36 dB로 기존의 발표된 물리적 마멸 방법 [11], [12] 에 비하여 우수하며, 열원을 이용한 커플러 제 작 방법에 비해서도 크게 뒤지지 않는다 [13], [14] . 하지만 이 는 식각비가 낮은 용액을 이용하거나 및 결합기 제작 시 진동의 감소와 같은 다양한 제작 환경의 개선을 통해 앞 으로 손실을 줄일 수 있다고 예상된다.…”

Section: 본 연구에서는 복잡하고unclassified

Fiber-Optic Directional Coupler Using HF Wet-Etching

Son¹,

Jung²,

Yu³

2017

J. Korean Inst. Electromagn. Eng. Sci.

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In this paper, a fabrication method of low-loss tapered optical fibers coupler using hydrofluoric acid with surface tension driven is proposed. The proposed fabrication method is very simple compared to flame-based method, and shows low excess insertion losses compared to polishing method. The adiabatic-tapered structure along the coupling region of the coupler shows wavelength independent characteristic over the C-band in optical communication system, and will enable promising applications.

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Section: 본 연구에서는 복잡하고unclassified

Fiber-Optic Directional Coupler Using HF Wet-Etching

Son¹,

Jung²,

Yu³

2017

J. Korean Inst. Electromagn. Eng. Sci.

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“…Because of its special transmission characteristics, photonic crystal fiber(PCF) has become a focus in the field of optical communication. There are three methods for fabrication of the optical fiber coupler: etching, polished gluing and fused biconical taper, which are based on single mode fiber [2][3][4][5][6][7]. The optical fiber produced by etching method is difficult to command the loss and has poor thermostability; The optical fiber produced by polishing gluing method tends to fracture and has a long fabricating period; The optical fiber produced by fusing biconical taper method can lead to collapse of internal porous in photonic crystal fiber.…”

Section: Introductionmentioning

confidence: 99%

Research on Coupler of Single Mode Fiber with Photonic Crystal Fiber

Wei¹,

Chen²,

Luo³

et al. 2014

AMM

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A coupler of single mode fiber with photonic crystal fiber with a coupling ratio of 0 to 90% was fabricated with a new method called Auto-deposition Fused Side-adhere. A model for coupler of side-polished single mode fiber with side-polished photonic crystal fiber was established which proves it feasible to make such a coupler practically. In the range of 1520~1620nm, the Wavelength Dependent Loss (WDL) of the through port was 0.3dB and of the coupled port was 5dB. The Polarization Dependent Loss of through port was 0.25dB and 0.31dB at 1310nm and 1550nm, and the WDL of coupled port was 1.46dB and 1.75dB. When temperature changed from 10°C to 80°C and humidity changed from 10% to 70%, coupling ratio changed about 7% to 16%. It can be concluded that a steady coupler of single mode fiber with photonic crystal fiber can be made with the Auto-deposition Fused Side-adhere Coupling method, which can give a reference method and lay an experimental foundation for the fabrication of photonic crystal fiber coupler.

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“…These devices are generally composed of optical fibers that are put in touch by fusion (Ozeki & Kawasaki, 1976), etching (Sheem & Giallorenzi, 1979), or mechanical polishing (Tsujimoto et al, 1978) methods. Optical splitting/coupling can also be performed by means of planar circuits (Hibino et al, 1995), some of which are based on diffraction principles (Smit, 1996) or, more recently, long period fiber gratings (Liu et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Photonic Crystal Fiber Based 1 ×NIntensity and Wavelength Splitters/Couplers

2012

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This article presents three new designs of photonic crystal fiber based intensity and wavelengths splitters/couplers. Numerical simulations have demonstrated the feasibility of planar and two-dimensional 1 8 intensity splitters/couplers using an optical signal having, respectively, a bandwidth of 1 THz and 125 GHz around a central wavelength of 1.55 m. A wavelength demultiplexer has also been simulated for four wavelengths (each also having a bandwidth of 125 GHz) that belong to four telecom windows used in optical fiber communications.

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Fabrication of low-loss 3 dB couplers with multimode optical fibres

Cited by 26 publications

References 3 publications

Fiber-Optic Directional Coupler Using HF Wet-Etching

Fiber-Optic Directional Coupler Using HF Wet-Etching

Research on Coupler of Single Mode Fiber with Photonic Crystal Fiber

Photonic Crystal Fiber Based 1 ×NIntensity and Wavelength Splitters/Couplers

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