D2-135 Offset Phase Lock Servo

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$4,574.00

D2-135 Offset Phase Lock Servo for locking the phase and offset frequency of a slave laser to that of a master

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Details

Features:

Offset Phase Locks up to ≥9.5 GHz
Feed forward for fast frequency jumping
Offset Frequency stability determined by external reference stability
User-adjustable servo loop parameters
Internal ramp generator
Options for optical or electronic beat-note input

Precisely control slave laser frequency offset

The D2-135 Offset Phase Lock Servo (OPLS) is designed to precisely control and quickly adjust the frequency detuning between two lasers. The D2-135 provides for an extremely tight phase lock between the master and the slave. The D2-250 Heterodyne Module conveniently enables the overlap and fiber coupling of two laser beams. This mates with a FC fiber connector on the D2-135, providing an easy optical input for the beat note. Alternatively, the fiber connector can be exchanged with an SMA to input an electronic beat-note. One can detect the optical beat note with the D2-260, or a third-party high-speed detector. The D2-135 OPLS provides full servo-loop customization for optimization of most lasers.

Typical Phase Lock using the D2-135 and two D2-100-DBR lasers. Note x-axis is divided by 2 so that the actual offset is 400 MHz.

The D2-135 accepts an electrical beat note obtained from a stand-alone fast detector, such as the D2-260 or third-party detectors.

The D2-135 integrates into our Rackless Rack. As such, it may be powered with our D2-005 or from an adjacent D2 electronics module. If used as a stand-alone product, it may be powered with either a D2-005, or from a user supplied power supply via a breakout board. View a typical configuration for using the D2-135.

Specifications

General Parameters
	Min	Max
Achievable Offsets	250 MHz	>9.5 GHz
Beat Note Divisors	8, 16, 32, 64
External Reference Frequency Range	30 to 240 MHz	Compared with divided down beat note
Loop Filter Transfer Function	PID	Adjustable poles & gain
Gain Range	0 to -76 dB
Loop Filter Bandwidth	10 MHz
Output Voltage	-10 V	+10 V
Feed Forward Range	±5 V
D2-135-SMA electrical beat note input
Electrical Input Connector	SMA
Electrical Beat Note Input Range	-10 dBm	+10 dBm
Electrical Beat Note Input Impedance	50 Ω
Achievable Offset in MHz
Internal VCO Reference (High Mode)
Offset Min	Offset Max
N=8	770	1700
N=16	1540	3400
N=32	3080	6800
N=64	6160	10000
Internal VCO Reference (Low Mode)
Offset Min	Offset Max
N=8	385	850
N=16	770	1700
N=32	1540	3400
N=64	3080	6800
External Reference: 30 – 240 MHz
Offset Min	Offset Max
N=8	240	1920
N=16	480	3840
N=32	960	7680
N=64	1920	10000