时间频率学报
時間頻率學報
시간빈솔학보
JOURNAL OF TIME AND FREQUENCY
2012年
2期
65-69
,共5页
黄家强%顾源%张胤%王延辉%刘淑琴%董太乾
黃傢彊%顧源%張胤%王延輝%劉淑琴%董太乾
황가강%고원%장윤%왕연휘%류숙금%동태건
铷原子频标%激光抽运%饱和吸收谱%频率稳定度
銣原子頻標%激光抽運%飽和吸收譜%頻率穩定度
여원자빈표%격광추운%포화흡수보%빈솔은정도
Rb frequency standard%laser-pumping%saturated absorption spectrum%frequency stability
在传统铷原子频标的基础上,利用一台780 nm的DFB半导体激光器代替铷光谱灯作为抽运光源,将激光的频率锁定在87Rb原子的循环跃迁线(52S1/2,F=2→52P3/2,F=3)上,实现了微波铷原子频标的闭环锁定,初步获得的短期稳定度指标为3.7×10-12τ-1/2(1~100 s)。
在傳統銣原子頻標的基礎上,利用一檯780 nm的DFB半導體激光器代替銣光譜燈作為抽運光源,將激光的頻率鎖定在87Rb原子的循環躍遷線(52S1/2,F=2→52P3/2,F=3)上,實現瞭微波銣原子頻標的閉環鎖定,初步穫得的短期穩定度指標為3.7×10-12τ-1/2(1~100 s)。
재전통여원자빈표적기출상,이용일태780 nm적DFB반도체격광기대체여광보등작위추운광원,장격광적빈솔쇄정재87Rb원자적순배약천선(52S1/2,F=2→52P3/2,F=3)상,실현료미파여원자빈표적폐배쇄정,초보획득적단기은정도지표위3.7×10-12τ-1/2(1~100 s)。
We use one DFB laser diode(780 nm) as the pumping source,which is based on a homemade traditional rubidium frequency standard with the discharge lamp assembly removed.The laser frequency is locked to the 87Rb cycling transition(52S1/2,F=2→52P3/2,F=3) by means of traditional saturation absorption locking technique and the microwave rubidium frequency standard locking loop is accomplished.The initial short-term stability of the rubidium clock is measured to be 3.7×10-12 τ-1/2(1~100 s).