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Koheras ADJUSTIK
NKT Photonics Koheras ADJUSTIK User Manual
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PRODUCT GUIDE
Low Noise Single Frequency Laser System
2
Table of Contents
Default Chapter
3
Guide Overview
3
Terminology
3
Table of Contents
5
Tables
11
Figures
13
Procedures
15
Koheras Adjustik Description
17
1 Laser Description
19
Features and Options
19
Figure 1 ADJUSTIK Front Panel
19
Theory of Operation
20
Module Variants
20
Center Wavelength
20
Output Power
20
Table 1 ADJUSTIK Variant Specifications
20
Tuning Types
21
Front and Rear Panels
21
Front Panel
21
Figure 2 ADJUSTIK Front Panel Layout
22
Rear Panel
23
Optical Specifications
23
Table 2 ADJUSTIK Rear Panel Layout
23
Laser Features
24
Thermal Tuning
24
Fast Wavelength Modulation
24
Figure 3 Frequency Response Using Wavelength Modulation
24
External Cavity Stabilization
25
Amplitude Modulation
25
Operating Mode
25
Table 3 Recommended Power Modes
25
Trigger
26
Auto-Start
26
High Temperature Shutdown
26
Power Verification
27
Miscellaneous
27
Safety
27
Optical Interface
27
Optical Fibers, Connectors and Adapters
27
Laser Control
28
Table 4 Optical Interface Specifications
28
User Interface
28
Status Leds
29
Table 5 Status Leds
29
Chassis Labels
30
Figure 4 Top Panel Label Locations
30
Figure 5 Rear Panel Label Location
30
Table 6 Module Labels
31
2 Modulation
33
Fast Wavelength Modulation
33
Configuring External and Internal Wavelength Modulation
33
Wavelength+/- Signal
34
Table 7 Wavelength Modulation Settings
34
Differential Input
35
Single-Ended to Differential
35
Singled-Ended Input
35
Figure 6 Differential Input Signal for Wavelength Modulation
35
Figure 7 Single-Ended to Differential
35
Figure 8: Single-Ended Input Signal with 2.5 V
36
Figure 9 Single-Ended Input with 2.5 V on an Unused Branch
36
Wavelength- to GND
37
Figure 10 Single-Ended Input Signal with GND on an Unused Branch
37
Figure 11 Single-Ended Input Connections with 0 V on an Unused Branch
37
Differential Output
38
Wavelength Modulation Coupling
38
Narrow Vs. Wide Modulation Range
38
Frequency Response
38
Table 8 Narrow Vs Wide Band Wavelength Modulation
38
Figure 12 Differential Output Signal
38
Figure 13 ADJUSTIK X15 Wavelength Modulation Response
39
Amplitude Modulation
40
Amplitude+/- Signal
40
Figure 14 ADJUSTIK E15/C15/Y10 Wavelength Modulation Response
40
External Cavity Stabilization (ADJUSTIK X15)
41
Figure 15 Differential Input for Amplitude Modulation
41
Figure 16 Single-Ended Input for Amplitude Modulation
41
Figure 17 ADJUSTIK X15 in Pound-Drever-Hall Configuration
42
Setting up External Cavity Stabilization
42
Operating the Laser
43
Front Panel Menu
45
Overview
45
General Operation
45
Table 9 Front Panel Menu Items
45
Figure 18 Top Level Menu
46
Top Menu
46
Wavelength
46
Figure 19 Wavelength Setting Menu
47
Figure 20 Wavelength Display Menu - Set as Absolute
47
Figure 21 Wavelength Modulation - on
47
W1 Mod. Gain
47
W1 Modulation
47
Wavelength Display
47
Figure 22 Wavelength Modulation Gain Setting Menu
48
Figure 23 Wavelength Modulation Source Signal Set to Internal
48
Figure 24 Wavelength Modulation Signal Coupling Set to AC
48
Figure 25 Wavelength Modulation Range Set to Narrow
48
W1 Mod. Coupling
48
W1 Mod. Range
48
W1 Mod. Source
48
Figure 26 Operation Mode Set to Constant Power Mode
49
Figure 27 Power Tuning Menu
49
Figure 28 Power Unit Menu - Set to Mw
49
Power
49
Power /Current Mode
49
Power Unit
49
Display Backlight
50
Emission Button
50
Figure 29 Watchdog Timer Setting
50
Figure 30 Setting the Intensity Level of the LCD Panel Back Light
50
Figure 31 IP Address Setting
50
IP Address
50
Watchdog Timer
50
3 Communicating with the Laser
53
CONTROL Software
53
Installing the Software
53
Connecting the Laser to a PC with CONTROL
53
Ethernet Connection
54
4 Turning on the Laser
57
Safety
57
Preparation
57
Enabling and Disabling Emission
58
Enable Emission (CONTROL)
58
Enable Emission (Front Panel)
59
5 Using CONTROL
63
CONTROL Overview
63
Figure 32 GUI Panel Navigation
63
Table 10 CONTROL Panels and Menu Items
63
Figure 33 Panel Dragged to a New Location in the Main Window
64
Figure 34 Panels Dragged Outside the Main Window
64
Relocating Panels
64
Connecting to the Laser
65
Figure 35 Panels Dragged Outside the Main Window
65
Figure 36 Welcome Screen and Connecting
65
Figure 37 Status Panel
66
Status Indicators
66
Emission Button
67
Measurements
67
System Info
67
WL Mod Button and Indicator
67
Status Panel
65
Toggling Panels
65
CONTROL Settings
67
Figure 38 GUI Settings
68
Wavelength Modulation
68
Figure 39 Wavelength Modulation - Internal Source
69
Figure 40 Wavelength Modulation - External Source
69
Figure 41 Internal Generator Waveform Selection (Type)
69
Figure 42 Turning on Wavelength Modulation
71
Figure 43 Power and Current Mode Controls
71
Power/Current Mode
71
Ethernet
72
Figure 44 Ethernet Setting
72
Watchdog
72
Clock
73
Figure 45 Watchdog Setting
73
Figure 46 Clock Setting
73
View
74
CONTROL Menu Items
74
Figure 47 View Setting
74
Figure 48 Menu Items
74
Serial Monitor
74
Application Log
75
Figure 49 Serial Monitor
75
Figure 50 Serial Monitor
75
CONTROL - Control Panel
76
Current Mode
76
Figure 51 Operating Mode Set to Power
76
Power Mode
76
Installing the Laser
77
6 Mechanical Installation
79
General
79
Heat Dissipation
79
Rack Mounting the Laser
79
Figure 52 Rear Panel Heat Sink
79
Placing the Laser on a Table or Shelf
80
Figure 53 Image of the Laser Rack Mounted
80
Figure 54 Rubber Mounting Feet
81
Figure 55 Table or Shelf Mounting
81
Operating and Storage Environment
81
7 Connecting the Laser
83
Connecting the Safety Interlock
83
Interlock Operation
83
Figure 56 Interlock Connected to a Door Switch - Laser on
83
Connecting an Interlock Switch
84
Bus Defeater
84
Figure 57 Interlock Connected to a Door Switch - Laser SHUTDOWN
84
Connecting Power
85
Connecting Modulation Signals
85
Connecting the Trigger Input or Output
85
Input Trigger
85
Table 11 Power Specifications
85
Output Trigger
86
Connecting the Optical Output
86
Figure 58 Trigger Input Circuit
86
Figure 59 Trigger Output Circuit
86
Appendices
89
A Specifications
91
Table 12 Optical
91
Table 13 Mechanical Dimensions
91
Table 14 Operating and Storage Environment
91
Table 15 Electrical
92
Table 16 Safety and Regulatory Compliances
92
Table 17 Mechanical Dimensions
93
B Service and Support Information
95
Servicing the Laser
95
Figure 60 Warranty Seal
95
Opening the Laser Chassis
95
WARRANTY VOID if REMOVED Label
95
Online Support Web-Page
96
Shipping Address
96
Support Contact Details
96
Support Email
96
C Interface Pin Assignments
97
Modulation Input/Output
97
External Bus
97
Table 18 Modulation Connector Pin Assignment
97
Table 19 External Bus Pin Assignment
97
D CONTROL Software
99
Installing CONTROL
99
4
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NKT Photonics Koheras ADJUSTIK Specifications
General
Brand
NKT Photonics
Model
Koheras ADJUSTIK
Category
Industrial Electrical
Language
English
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