周波数ロックエレクトロニクス

レーザーロックのためのスマートなソリューション

トプティカ社では究極の狭線幅を特徴とする安定化されたチューナブル半導体レーザーを提供しています。しかしながら多くの最先端のアプリケーションでは更に高度で厳しい要求事項があります。周波数変動の低減や長時間周波数ドリフトを無効にするために周波数安定化やロッキングの技術が必要とされ、トプティカ社では様々なレーザーロッキングエレクトロニクスをご用意しています。

Application Note - Phase and Frequency Locking of Diode Lasers

	Falc pro	DigiLock 110	FALC 110 & mFALC 110	PDH/DLC pro	PDD 110/F	DLC pro Lock^a	Wavelength Meter
Description / Type	Digitally controlled fast analog PID	Versatile digital locking solution incl. PID	Fast Analog 2-Channel PID	Pound-Drever-Hall Signal Generation, requires additional PID		All-digital feedback solution, incl. PID	Wavelength meter with PID option
Main application	all		linewidth narrowing	PDH locking, FM or modulation transfer spectroscopy		Spectroscopy lock	Long-term stabilization
Side-of-fringe	✔	✔	✔			✔	not applicable
Top-of-fringe	With PDH	✔	With PDH or PDD	✔	✔	✔	not applicable
Max. bandwidth	50 MHz (-3 dB)	≈ 10 MHz	≈ 45 MHz	50 MHz (analog) 1.5 MHz (digital)	≈ 7 MHz	≈ 30 kHz	< 100 Hz
Modulation frequency		17 Hz .. 25 MHz		5 MHz or 25 MHz	12 - 35 MHz ^b	11 Hz .. 160 kHz	not applicable
Accuracy		depends on reference (can be very good)					2 MHz
Signal analysis		FFT, ...				FFT, ...
Relock mechanisms	With DLC pro Lock	✔				✔
Computer control	✔	✔		✔		✔	✔
High voltage output						✔
High bandwidth output	✔	✔	✔	✔	✔
Two feedback channels	✔	✔	✔	✔	✔	✔	Up to 8 channels available
Rack compatibility ^c	DLC pro required	✔	✔	^d	✔
Strength	Best performance	High end & preferrable				Integrated in DLC pro	stand-alone

^a optional software license for DLC pro
^b 5- 70 MHz versions available
^cDLC ext or SYS DC 110
^d Built-in module for DLC pro
^e No high voltage available if operated in DLC ext