Simultaneous evaluation of two branches of a multifunctional integrated optic chip with an ultra-simple dual-channel configuration

Yonggui Yuan; Chuang Li; Jun Yang; Ai Zhou; Shuai Liang; Zhangjun Yu; Bing Wu; Feng Peng; Yu Zhang; Zhihai Liu; Libo Yuan

doi:10.1364/PRJ.3.000115

Journals >Photonics Research >Volume 3 >Issue 4 >Page 115 > Article

Photonics Research
Vol. 3, Issue 4, 115 (2015)

Simultaneous evaluation of two branches of a multifunctional integrated optic chip with an ultra-simple dual-channel configuration

Yonggui Yuan¹, Chuang Li¹, Jun Yang^1、*, Ai Zhou², Shuai Liang¹, Zhangjun Yu¹, Bing Wu¹, Feng Peng¹, Yu Zhang¹, Zhihai Liu¹, and Libo Yuan¹

Author Affiliations

¹Key Laboratory of In-fiber Integrated Optics of Ministry Education of China, Harbin Engineering University,Harbin 150001, China

²National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology,Wuhan 430074, China

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DOI: 10.1364/PRJ.3.000115 Cite this Article Set citation alerts

Yonggui Yuan, Chuang Li, Jun Yang, Ai Zhou, Shuai Liang, Zhangjun Yu, Bing Wu, Feng Peng, Yu Zhang, Zhihai Liu, Libo Yuan. Simultaneous evaluation of two branches of a multifunctional integrated optic chip with an ultra-simple dual-channel configuration[J]. Photonics Research, 2015, 3(4): 115 Copy Citation Text

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Fig. 1. Schematic diagram of the ultra-simple dual-channel configuration for simultaneously evaluating the MFIOC. GRIN, graded index.

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Measured interference pattern of the MFIOC by using the dual-channel evaluating system. The left-side pattern expresses the cross-couplings of path 1, and the right-side pattern denotes the cross-couplings of path 2.

Fig. 2. Measured interference pattern of the MFIOC by using the dual-channel evaluating system. The left-side pattern expresses the cross-couplings of path 1, and the right-side pattern denotes the cross-couplings of path 2.

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Fig. 3. Cross talk distribution of 20 measurements at room temperature.

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Fig. 4. Temperature responses of the two branches of the MFIOC.

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MFIOC	Length (m)	Approximate Birefringence	Estimated OPD (mm)
$l_{A a}$	19.0	$5 \times 10^{- 4}$	9.50
$l_{a B}$	1.22	$5 \times 10^{- 4}$	0.61
$l_{B E} / l_{B D}$	0.02	$8 \times 10^{- 2}$	1.60
$l_{E e}$	1.20	$5 \times 10^{- 4}$	0.60
$l_{D d}$	1.59	$5 \times 10^{- 4}$	0.80
$l_{e G}$	4.7	$5 \times 10^{- 4}$	2.35
$l_{d F}$	3.6	$5 \times 10^{- 4}$	1.80

Table 1. Length and Estimated OPD of the MFIOC

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Peak	Position (mm)	Cross Talk (dB)	Corresponding Waveguide OPD
I ( $ρ_{d}$ )	1.962	−37.2	$l_{d F}$
$I^{'}$ ( $ρ_{e}$ )	−2.924	−43.1	$l_{e G}$
II ( $ρ_{D}$ )	2.928	−38.8	$l_{D F}$
${II}^{'}$ ( $ρ_{E}$ )	−3.646	−44.1	$l_{E G}$
III ( $ρ_{a}$ )	9.362	−32.4	$l_{A a}$
${III}^{'}$ ( $ρ_{a}$ )	−9.354	−32.5	$l_{A a}$
IV ( $ρ_{B}$ )	10.070	−47.5	$l_{A B}$
${IV}^{'}$ ( $ρ_{B}$ )	−10.065	−47.5	$l_{A B}$
V( $ε_{2}$ )	11.383	−55.7	$l_{A B} - l_{B D} + l_{D F}$
$V^{'}$ ( $ε_{1}$ )	−12.098	−53.6	$l_{A B} - l_{B E} + l_{E G}$