Ultra-Short Pulse-Train Generation of 30-GHz Repetition Rate Using Rational Harmonic Mode Locking and Nonlinear Polarization Rotation

Q4 Engineering

International Journal of High Speed Electronics and Systems Pub Date : 2023-07-20 DOI:10.1142/s0129156423500246

A. F. M. Moshiur Rahman, S. Fan, N. Dutta

引用次数: 0

Abstract

A 30-GHz pulse-train is generated using the rational harmonic mode-locking technique, experimentally, using a Mach–Zehnder Lithium Niobate modulator. The width of the pulses is then reduced from 5.8-ps to 1.9-ps by incorporating nonlinear polarization rotation. This phenomenon arises due to the very high nonlinear behavior of the photonic crystal fiber (PCF) added to the ring laser cavity. Numerically solving the Generalized Nonlinear Schrödinger Equation provided insights into the pulse evolution behavior. The relative polarization angle and length of the PCF were varied to study their effects on the pulse-width.

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利用有理谐波锁模和非线性极化旋转产生重复频率为30GHz的超短脉冲串

30 GHz脉冲串是使用有理谐波锁模技术产生的，实验上使用马赫-曾德尔铌酸锂调制器。然后通过结合非线性偏振旋转将脉冲的宽度从5.8-ps减小到1.9-ps。这种现象是由于添加到环形激光腔中的光子晶体光纤（PCF）的非常高的非线性行为而产生的。对广义非线性薛定谔方程的数值求解为脉冲演化行为提供了见解。改变PCF的相对偏振角和长度，以研究它们对脉冲宽度的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of High Speed Electronics and Systems Engineering-Electrical and Electronic Engineering

CiteScore

0.60

自引率

0.00%

发文量

期刊介绍： Launched in 1990, the International Journal of High Speed Electronics and Systems (IJHSES) has served graduate students and those in R&D, managerial and marketing positions by giving state-of-the-art data, and the latest research trends. Its main charter is to promote engineering education by advancing interdisciplinary science between electronics and systems and to explore high speed technology in photonics and electronics. IJHSES, a quarterly journal, continues to feature a broad coverage of topics relating to high speed or high performance devices, circuits and systems.