Differences

This shows you the differences between two versions of the page.

--- groups:mg:clocklaser [2017/01/13 12:58] – ssauer
+++ groups:mg:clocklaser [2018/08/31 13:25] (current) – removed ssauer
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-===== Clocklaser =====
-==== Turning on the Laser ====
-==== Turning off the Laser ====
-==== Locking to the resonators ====
-==== Littmann design ====
-{{ :groups:mg:img_0260.jpg?600|}}
-{{ :groups:mg:img_0259.jpg?600|}}
-**Typical efficiencies at 916 nm:**
-  * Isolators: 80 %
-  * AOMs: 50-60 %
-  * Fiber coupling: 50 %
-**Typical values for the laser:**
-  * Frequency: 327.5293 THz (doubled upstairs directly behind SHG: 655.058 566 THz)
-  * Power after ECDL: ~12 mW (@ ~90 mA)
-  * Power after TA: ~200 mW (@ ~1000 mA)
-  * TA current should be <1.2A otherwise the fiber stabilization will soar (=aufschwingen)
-**Typical values in front fibers:**
-  * Power before fiber for wavemeter/comb/mode analysis cavity:~12 mW
-  * Power before AtomLabFiber: ~30 mW -> 15 mW upstairs before TA
-  * Power to R2: ~2.5 mW
-**Typical values for the resonators:**
-  * In front of telescope: 2.2 mW
-  * In front of AOM: 1.5 mW
-  * In front of fiber: 450 µW
-  * 100 µW between Isolator and BS
-  * 50 µW in front of Resonator
-**Typical values for locking signals:**
-  * PDH error signal locked ~500 mV PP / unlocked ~200 mV PP
-  * Intensity Error signal ~2 mV PP / DC:
-  * Fiber Stabilization Locked ~200 mV PP / Unlocked ~2 Volt PP
-**Manuals and Datasheets**