ZMI™ Series Laser Heads, ZYGO

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Laser Heads ZMI™ Series - Displacement Measuring Interferometers

ZMI™ lasers provide frequency stabilized, two-frequency output to drive multiple measurement axes. The small ZMI™ 7705 is used with the ZMI™ 501A measurement enclosure to provide two axes of measurement. The larger lasers include features such as more power (7702), water cooling (7714), and separate laser source and delivery modules (7722/7724). These lasers can typically provide enough light to support tens of measurement axes.


Model:	7705	7702	7714	7722/7724
Part Number:	8070-0902-0X	8070-0102-0X	8070-027X-0X	8070-0268-02/ 8070-0277-01
Split Frequency:	3.6 MHz (Zeeman)	20 MHz (AOM)
Output Power:	> 250 µW	> 400 µW	> 1250 µW	> 900 µW per DM*
Laser Classification:	Class II		Class IIIa
Frequency Stability (3σ, 1 hr):	10 ppb	2 ppb	0.5 ppb
Beam Size:	4 mm	3 or 6 mm	6 or 8 mm	6 or 10 mm
Heat Dissipation:	7 W	39 W	8 W	LM: 5 W DM: 0.02 W
Expected Laser Tube Life:	20,000 hours	50,000 hours
Cooling Method:	Air		Water
Optical Isolation:	No		Yes

*	Each 7724 Laser Module (LM) can accommodate two 7722 Delivery Modules (DMs) with output power of > 900 µW per DM