【摘要】 为了满足大尺寸精密干涉测量对干涉信号的信噪比要求，我们研制了偏频锁定氦氖０．６３３μｍ碘吸收稳频激光器，该系统激光的频率不稳定度为５．５×１０－１２（τ＝１０ｓ），系统的频率再现性为４×１０－１１，可连续锁定６个小时以上，无调制输出功率大于０．８ｍＷ。更多还原

【Abstract】 In order to meet the requirements of large size precision interferometry for the SNR of interference signal,we developed the offset locked He-Ne 0. 633μm iodine absorbing frequency stabilizing laser. The laser frequency instability is less than 5 × 10-12 (τ= 10s). The system frequency reproduction is 4 × 10-11. It can be continuously locked for more than 6 hours. Modulation-free output power is over 0. 8 mW.更多还原