排序方式: 共有13条查询结果,搜索用时 15 毫秒
1.
2.
3.
A 10-GHz soliton source with pulse duration between 4-8 ps and wavelength continuously tunable from 1530 to 1563 nm is presented. Using regeneratively mode-locking technology, the harmonically modelocked fiber ring laser could work without pulse dropout at room temperature when no cavity length or polarization maintaining mechanism is available. Applying only one 980-nm laser diode pump, the average output power reaches more than 4 mW. 相似文献
4.
5.
以广义惠更斯-菲涅尔衍射理论为基础,采用Zernike多项式描述像差光束畸变波前相位,研究超高斯光束因卡式系统加工和装调导致波像差劣化后,通过传输在远场聚焦性能。分析主次镜系统波像差下降到1/13λ左右时,对应像散和慧差对聚焦位置处光强分布和光斑桶中功率PIB影响。结果表明:相对理想系统,像差会导致聚焦位置处光束展宽,80%处桶中功率PIB下降明显,但对应95%能量范围光斑直径在设计值允许范围内,仍然满足总体使用要求。 相似文献
6.
高重复频率超短光脉冲产生技术是高速光时分复用(OTDM)系统的关键技术之一,而一般的超短脉冲源直接产生的脉冲往往不够窄,因此必须对光脉冲进行压缩后才能满足高速光通信系统的要求。采用360 m长的色散渐减光纤(DDF),成功将从再生锁模光纤激光器(RMLFL)输出的中心波长1546 nm、重复频率10 GHz、脉宽分别为5.40 ps和4.60 ps的光脉冲,绝热压缩为脉宽为1.93 ps和1.71 ps的小基座孤子脉冲,压缩因子分别为2.80和2.69。利用这种绝热孤子压缩方法得到的光脉冲质量较好,可以用于160 Gb/s的光时分复用系统。 相似文献
7.
Generation of Stable Picosecond Chirp-Free Pulses at 10 GHz from a Nonpolarization Maintaining Regeneratively Mode-Locked Fibre Laser 下载免费PDF全文
A 10 GHz regeneratively mode-locked fibre laser (RMLFL) at 1550 nm constructed with commercially available radio frequency components is presented. Chirp-free hyperbolic secant pulses with duration from 4.4ps to 8ps and output reaching 3.6mW are acquired. Without any cavity length or polarization maintaining mechanism,the error-free operation of this RMLFL can be carried out in room temperature. 相似文献
8.
Wavelength and duration tunable soliton generation from a regeneratively mode-locked fiber laser 总被引:1,自引:0,他引:1
A 10-GHz soliton source with pulse duration between 4-8 ps and wavelength continuously tunable from 1530 to 1563 nm is presented. Using regeneratively mode-locking technology, the harmonically modelocked fiber ring laser could work without pulse dropout at room temperature when no cavity length or polarization maintaining mechanism is available. Applying only one 980-nm laser diode pump, the average output power reaches more than 4 mW. 相似文献
9.
By using the amplified 10-GHz, 5.5-ps sech2 pulses with high quality and chirp-free from regeneratively mode-locked fiber laser (RMLFL) as the soliton source, 2-5 order optical soliton phenomena are observed successfully in a 4.28-km dispersion flattened fiber. The experimental results agree well with the theoretical calculation. 相似文献
10.
目的是在一般Banach空间中建立一个无限可数多个非扩张映像族的公共不动点的强收敛定理.使用一些新的分析技巧,尤其是Dotson引理和W映像技巧,给出了Shimoji and Takahashi的一个定理的简单证明. 相似文献