A self-tuning PLL with a tuning range from 1.7 GHz to 2.1 GHz and 5-bit control word was implemented based on the proposed scheme .

深入讨论了方案的具体实现及相关问题，并实现了一个 调谐 范围为1.7~2.1GHz，控制位为5位的自调谐锁相环。

The tunable thulium doped fiber laser has features that : high power large tuning range convenient operation and large application range .

本实用新型可调谐掺铥光纤激光器，具有功率高、 调谐 范围大、操作方便和应用范围广等特点。

Tunable single longitudinal mode operation of semiconductor lasers is obtained using an external dispersive cavity . The linewidth is less than 0 . 1A and the tuning range is about 110 A.

利用半导体激光器的外色散腔形式获得了可调谐单纵模运转，线宽小于0.1， 调谐 范围约110。

The oscillation and amplification of dual-frequency dye laser with common line wide tuning range adjustable power-ratio and narrow linewidth have been realized experimentally and a high power of pulse energy 12-13 mJ was achieved .

实验实现了共线、宽 调谐 范围、功率比可控、可调、窄线宽的双频激光的振荡与放大.获得了脉冲能量12～13mJ的高功率输出。

The characteristics of laser dye DCM such as tuning range and peak wavelength in different solvents and at several concentrations have been studied experimentally in detail .

实验研究了激光新染料DCM在不同溶剂、不同浓度时的激光特性，测量了它的 调谐 范围和峰值波长。

An experimental setup including control circuit of stepping motor has been designed . As a result the central wavelength offset less than 0.6 nm is achieved with a tuning range of 15481561 nm .

设计了一个包括步进电机控制电路在内的实验装置，在1548~1561nm的波长 调谐 范围 内，取得了线性误差在±0.6nm以下的实验结果。

Meanwhile sufficient and necessary conditions for holding the control system nominal performance and robust stability were analyzed in the presence of the process multiplicative uncertainty and consequently the tuning range of the controller parameters was obtained .

同时，对于存在乘性不确定性的被控过程，分析了控制系统满足标称性能和鲁棒稳定性的充要条件，并由此确定出控制器参数的 调节 范围。

Its frequency tuning range broadened by Zeeman effect was more than 2500 MHz .

激光器单频 可 调 范围经塞曼效应展宽后达2500兆赫以上。

The circuit could increase the frequency tuning range and decrease phase noise simultaneously .

在提高振荡器的 可 调 范围的同时，降低相位噪声。

A simple tunable all fiber erbium doped fiber ring laser with large tuning range has been reported .

报道了一种结构简单的全光纤型宽带 调谐光纤激光器。

So this approach can achieve the output of fixture or random wavelength which enlarges the tuning range adequate for optical fiber communication and sensor system .

此方案可以实现固定波长或任意波长的激光输出，扩大了 激光器 的 调谐 范围，能够满足光纤通信和传感系统对大 范围调谐窄带光源的要求。

This method gives a simple way of achieving both relatively high dynamic tuning range and high tuning speed .

光热调谐给出了一种简便的实现大动态 范围和高速 调谐的方式。

It is find that there isn ′ t any absolute PBG in any condition but big tuning range of TE polarized wave can be achieved by changing the index of liquid crystal .

发现均无完全光子禁带出现，而通过改变液晶折射率可得到大 调谐 范围的TE偏振光。

TOPO is a useful configuration for multiple laser output broad tuning range and high-efficiency mid-IR lasers .

TOPO是实现多波长输出、宽范围 调谐、高效率中红外激光的有效结构。

Through inductor optimization the VCO has a low phase noise and a wide tuning range with switched capacitor array and NMOS varactor .

通过优化集成电感的设计，同时采用NMOS管和开关电容阵列作为可变电容，使该设计具有较低的相位噪声和较宽的 调谐 范围。

The maximum continuous tuning range ( without mode hopping ) is 0.82 nm at 1.538 μ m.

其波长连续 可 调谐 范围（不含跳模）在1.538μm波段可达0.82nm。

The tuning range is relative to the period of two gratings .

调谐 的 范围和两个光栅的反射峰的距离差有关。

Utilizing a cantilever beam to tune the Bragg wavelength of a fiber grating which was used to an actively mode locked fiber ring laser . A wavelength tuning range of 5.240 nm is obtained with the tunable grating here .

利用悬臂梁来对光纤光栅的Bragg波长进行调谐，并将可调谐光纤光栅用于主动锁模光纤环形激光器中，获得了5.24nm的波长 调谐 范围。

Based on the field investigation the paper summarizes the engineering tuning range of the parameters of controller .

在现场调查的基础上，本文归纳出了调节器参数的工程 整 定 范围。

Based on the results the range of voltage variation and the range of the tuning range under a special given voltage have been defined .

在此基础上，确定了给定电压的变化范围和不同频率下的有效 调节 范围。

A 5-GHz low Phase noise and wide tuning range Voltage Controlled Oscillator design

低相位噪声和宽 调谐 范围的5-GHz压控振荡器设计

In this paper a VCO with the more than one octave tuning range is designed .

本论文主要设计跨倍频程 调谐 范围的宽带压控振荡器。

The achievable tuning range of the giant magnetostrictive based fiber Bragg grating tuning scheme is studied .

研究了基于超磁致伸缩材料实现对光纤布拉格光栅的动态调谐这一方案理论上可获得的最大 调谐 范围。

Design of a Ring Voltage-Controlled Oscillator with Wide Tuning Range and Low Phase Noise

宽 调谐低相位噪声的环形压控振荡器设计

By analyzing the external cavity sampled grating structure we could calculate the tuning range of tunable laser .

对外腔取样光栅结构的分析，可以计算出激光器的 调谐 范围。

A novel self-tuning scheme is proposed in which a wide tuning range is realized by digital and analog tuning circuit to reduce VCO gain .

提出了一种用数字和模拟电路的方法实现宽 调谐 范围，减小VCO增益的方案。

A theoretical frequency tuning range of 12.5-100 GHz or 40-110 GHz is obtained . Such a large tunable frequency range is difficult to achieve using conventional electronic techniques .

两种方案的频率 可 调谐 范围在理论上分别可以达到12.5-100GHz和40-110GHz，如此大的可调谐频率范围使用传统的电子学方法是难以实现的。

Using only one output coupler the tuning range of the laser was from 730 nm to 850 nm .

在 调谐状态下，用一输出耦合镜得到波长 可 调谐 范围为730～850nm。