Electrical wavelength switching of an actively mode-locked, fiber Bragg grating incorporated fiber ring laser is demonstrated.

介绍了内置光纤光栅的主动锁模光纤环形激光器输出光脉冲波长电切换的工作原理和实验结果。

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The emphasis is on the characteristics of WDM fiber optic network, the principle of optical switching by selecting wavelength. At last the WDM star and ring networks are addressed as an example.

重点介绍了波分复用(WDM)光纤网络的特点、通过选择光波长实现光交换的原理、WDM星形和环形光网络的构成等。

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This paper describes the principle of the bidirectional multiplex section switching ring.

介绍了双向复用段倒换环的工作原理。

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Additionally, it features a macro switching ring on the lens barrel which instantly shortens the minimum focusing distance to approximately 20cm (from image plane), allowing the camera to capture small, close-up subjects with exquisite detail.

ENGADGET: Sony's Cyber-shot RX1 compact camera packs a full-frame sensor, 'fits in your palm' (hands-on)