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

Photonics Research, Volume. 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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Figures & Tables(6)

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

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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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Table 1. Length and Estimated OPD of the MFIOC
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Table 1. Length and Estimated OPD of the MFIOC
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 2. Measurement Results of the MFIOC

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Table 2. Measurement Results of the MFIOC

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	$l_{A B} - l_{B E} + l_{E G}$

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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," Photonics Res. 3, 115 (2015)

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