Ikeda M, Murakami Y, Kitayama K
Appl Opt. 1977 Apr 1;16(4):1045-9. doi: 10.1364/AO.16.001045.
Mode conversion at a splice was measured. Even the best splice, whose transmission loss was less than 0.01 dB, caused a mode conversion equaling about 11% of the total power. Spliced fiber transmission characteristics were influenced by the splicing conditions. To avoid deviations in characteristics due to splices a simple and effective mode scrambler was fabricated. Its insertion loss was less than 0.3 dB for a laser diode. Each mode's output waveform was found to be the same as the total output waveform.
测量了接头处的模式转换。即使是传输损耗小于0.01 dB的最佳接头，也会导致模式转换，其转换量约占总功率的11%。拼接光纤的传输特性受拼接条件的影响。为避免因接头导致特性出现偏差，制作了一种简单有效的模式扰频器。对于激光二极管，其插入损耗小于0.3 dB。发现每个模式的输出波形与总输出波形相同。
