© 2026 Aqora Quantum S.A.S.

Terms Privacy Legal Notice

International Topical Meeting on Microwave Photonics

Bi-directional comb-fiber architecture for resolution improvement of optical quantization employing soliton self-frequency shift and spectral compression

Xuyan Zhang, Zhiyao Zhang, Heping Li, Yong Liu

Published Oct 1, 2017• 0 citations

Abstract

We demonstrate a high-resolution quantization scheme based on soliton self-frequency shift (SSFS) and spectral compression in a bi-directional comb-fiber architecture. Our scheme is composed of a Sagnac-loop-based mirror and a comblike combination of two sections of interleaved single-mode fibers (SMFs) and high nonlinear fibers (HNLFs). The Sagnac-loop-based mirror is placed at the terminal of the bus line to reflect the optical pulses back to the bus line to achieve single-stage SSFS and three-stage spectral compression. Quantization with a resolution of 6.2-bit is obtained in the experiment, which is 1.2-bit higher than that of its uni-directional counterpart. Our bidirectional scheme can achieve higher quantization resolution with a small volume and a low cost compared with its uni-directional counterpart.

DOI: 10.1109/mwp.2017.8168689

Related papers

Optical spectrum compression employing time-dependent filtering and its application in optical quantization based on soliton self-frequency shift

Zhiyao Zhang, Xuyan Zhang, Lingjie Zhang +2 more

A novel optical spectrum compression scheme based on time-dependent filtering is proposed and demonstrated. The spectrum compression is realized by using nonlinear polarization rotation effect to achieve power-dependent filtering of a chirped soliton pulse. In the experiment, a single-stage spectrum compression unit based on the proposed scheme is employed in the soliton self-frequency shift-based optical quantization system to improve the quantization resolution. The experimental results show that an average output spectrum width of 1.5 nm is obtained using the proposed scheme, which is 68% of that using the traditional comb-like fiber scheme. In addition, the quantization resolution using the proposed scheme is 5.1 bits, which is 0.6 bit higher than that using a single-stage spectrum compression unit based on the traditional comb-like fiber structure.

Semiconductor Lasers and Applications•Nov 6, 2018•1 citation

High-resolution quantization based on soliton self-frequency shift and spectral compression in a bi-directional comb-fiber architecture

Xuyan Zhang, Zhiyao Zhang, Shubing Wang +3 more

Optics Communications•Nov 21, 2017•6 citations

All-Optical Quantization Based on Soliton Self-Frequency Shift and Spectral Compression in a CS 2 -Filled Photonic Crystal Fiber

Shipei Jing, Rui Ma, Kuiru Wang +4 more

In this paper, we numerically demonstrate that efficient spectral compression and soliton self-frequency shifting in a photonic crystal fiber are simultaneously realized. The proposed fiber is applied to all-optical quantization and an effective quantization number of 3.63-bit is achieved.

Asia Communications and Photonics Conference•Nov 2, 2019•0 citations

4bits all-optical quantization based on the Raman self-frequency shift and spectral compression

Rui Liang, Xiaojun Zhou, Zhiyao Zhang +1 more

We numerically analyze the all-optical quantization based on the Raman self-frequency shift in a photonic crystal fiber. Resolution of 4bits can be realized with increasing a dispersion-decreasing fiber to compress the shifted spectrum.

Opto-Electronics and Communications Conference (OECC)•Jul 1, 2009•0 citations

Quantum soliton generation via interference of nonlinear Schrodinger equation coherent solitonic fields

M.J. Werner, Stephen R. Friberg

Summary form only given. We have shown for the first time that large photon-number squeezing of coherent pulses can be produced by a Sagnac loop for a significant range of input energies and that it is larger than predicted for directly spectrally filtered optical fiber solitons. Despite this, we pointed out the similarities between the two schemes. In essence, a Sagnac fiber loop is capable of producing optical pulses closer to true quantum solitons than their coherent counterparts from modelocked lasers.

Conference on Lasers and Electro-Optics•Nov 27, 2002•1 citation

Optimizational 6-bit all-optical quantization with soliton self-frequency shift and pre-chirp spectral compression techniques based on photonic crystal fiber

Sha Li, Jianping Wang, Zhe Kang +1 more

Optimizational 6-bit all-optical quantization with soliton self-frequency shift and pre-chirp spectral compression techniques based on photonic crystal fiber, Li, Sha, Wang, Jian-Ping, Kang, Zhe, Yu, Chong-Xiu

Chinese Physics B•Aug 1, 2015•1 citation

We demonstrate a high-resolution quantization scheme based on soliton self-frequency shift (SSFS) and spectral compression in a bi-directional comb-fiber architecture. Our scheme is composed of a Sagnac-loop-based mirror and a comblike combination of two sections of interleaved single-mode fibers (SMFs) and high nonlinear fibers (HNLFs). The Sagnac-loop-based mirror is placed at the terminal of the bus line to reflect the optical pulses back to the bus line to achieve single-stage SSFS and three-stage spectral compression. Quantization with a resolution of 6.2-bit is obtained in the experiment, which is 1.2-bit higher than that of its uni-directional counterpart. Our bidirectional scheme can achieve higher quantization resolution with a small volume and a low cost compared with its uni-directional counterpart.

A novel optical spectrum compression scheme based on time-dependent filtering is proposed and demonstrated. The spectrum compression is realized by using nonlinear polarization rotation effect to achieve power-dependent filtering of a chirped soliton pulse. In the experiment, a single-stage spectrum compression unit based on the proposed scheme is employed in the soliton self-frequency shift-based optical quantization system to improve the quantization resolution. The experimental results show that an average output spectrum width of 1.5 nm is obtained using the proposed scheme, which is 68% of that using the traditional comb-like fiber scheme. In addition, the quantization resolution using the proposed scheme is 5.1 bits, which is 0.6 bit higher than that using a single-stage spectrum compression unit based on the traditional comb-like fiber structure.

Summary form only given. We have shown for the first time that large photon-number squeezing of coherent pulses can be produced by a Sagnac loop for a significant range of input energies and that it is larger than predicted for directly spectrally filtered optical fiber solitons. Despite this, we pointed out the similarities between the two schemes. In essence, a Sagnac fiber loop is capable of producing optical pulses closer to true quantum solitons than their coherent counterparts from modelocked lasers.