Name: NKT Photonics Koheras BASIK
Brand: NKT Photonics
Rating: 4 (1 reviews)

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Item: 800-601-01

Customer Revision: 1.5

NKTP Revision: 2.0

Release Date: 03-2022

Koheras BASIK

PRODUCT GUIDE

Low Noise Single Frequency Laser Module

Guide Overview3
Terminology3
Table of Contents7
Tables13
Figures15
Procedures19
Koheras Basik Description21
Laser Description23
Features and Options23
Figure 1 BASIK Front Panel23
Theory of Operation24
Module Variants24
Configuration ID24
Center Wavelength24
Table 1 BASIK Variant Specifications24
Output Power25
Tuning Types25
Front and Rear Panels25
Front Panel25
Rear Panel26
Figure 2 BASIK Front Panel Layout26
Optical Specifications27
Laser Features27
Thermal Tuning27
Figure 3 BASIK Rear Panel Layout27
Fast Wavelength Modulation28
Figure 4 Frequency Response Using Wavelength Modulation28
External Cavity Stabilization29
Operating Mode29
Trigger29
Auto-Start29
Table 2 Recommended Power Modes29
Emission Delay30
Shutdown Delay30
High Temperature Shutdown30
Power Verification30
Miscellaneous31
Power Supply31
Safety31
Accessories31
Figure 5 USB-RS485 Adapter31
Optical Interface32
Optical Fibers, Connectors and Adapters32
Figure 6 BASIK Equipped with Fiber Cord and FC/APC Connector32
Laser Control33
User Interface33
Status Leds33
Table 3 Optical Interface Specifications33
Figure 7 Status Leds33
Module Labels34
Table 4 Status Leds34
Figure 8 Top Panel Label Locations34
Table 5 Module Labels35
Figure 9 Front Panel Label Locations35
Modulation37
Fast Wavelength Modulation37
Configuring External and Internal Wavelength Modulation37
Wavelength+/- Signal38
Table 6 Wavelength Modulation Settings38
Differential Input39
Single-Ended to Differential39
Singled-Ended Input39
Figure 10 Differential Input Signal for Wavelength Modulation39
Figure 11 Single-Ended to Differential39
Figure 12: Single-Ended Input Signal with 2.5 V40
Figure 13 Single-Ended Input with 2.5 V on an Unused Branch40
Wavelength- to GND41
Figure 14 Single-Ended Input Signal with GND on an Unused Branch41
Figure 15 Single-Ended Input Connections with 0 V on an Unused Branch41
Differential Output42
Wavelength Modulation Coupling42
Narrow Versus Wide Modulation Range42
Frequency Response42
Table 7 Narrow Vs Wide Band Wavelength Modulation42
Figure 16 Differential Output Signal42
Figure 17 BASIK X15 Wavelength Modulation Response43
External Cavity Stabilization (BASIK X15)44
Figure 18 BASIK E15/C15/Y10 Wavelength Modulation Response44
Figure 19 BASIK X15 in Pound-Drever-Hall Configuration44
Setting up External Cavity Stabilization45
Operating the Laser47
Communicating with the Laser49
Connection Kit49
CONTROL Software49
Installing the Software49
Table 8 Koheras BASIK PC Connection Kit49
Software Development Kit50
Generic User Interface50
Connecting CONTROL to the Laser50
Procedure 1 Connecting CONTROL to the Laser50
Procedure 2 Connecting the SDK Generic User Interface to the Laser52
Connecting the SDK GUI to the Laser53
Turning on the Laser55
Safety55
Preparation55
Controlling the Laser Emissions56
Turning on the Laser56
Procedure 3 Turning on the Laser Using CONTROL56
Procedure 4 Turning on the Laser Using the Generic User Interface57
Using CONTROL59
CONTROL Overview59
Table 9 CONTROL Panels and Menu Items59
Figure 20 GUI Panel Navigation59
Relocating Panels60
Figure 21 Relocating Panels Within CONTROL60
Figure 22 Dragging Panels Outside the Main Window60
Procedure 5 Relocating Panels60
Toggling Panels Visible61
Connecting to the Laser61
Figure 23 Toggling Panel Visibility61
Figure 24 Welcome Screen and Connecting61
Device Selector62
Figure 25 Connect Button62
Figure 26 Device Selector Panel62
Status Panel63
Status Indicators63
Figure 27 Status Panel63
Module Info64
Measurements64
WL Mod Button and Indicator64
Emission Button64
CONTROL Settings65
Wavelength Modulation65
Figure 28 GUI Settings65
Figure 29 Wavelength Modulation - Internal Source66
Figure 30 Wavelength Modulation - External Source66
Figure 31 Wavelength Modulation - both67
Figure 32 Internal Generator Waveform Selection - Type Setting67
Trigger69
Figure 33 Turning on Wavelength Modulation69
Power/Current Mode70
Figure 34 Trigger Type - Input70
Figure 35 Trigger Type - Output70
Auto-Start71
View71
Figure 36 Power and Current Mode Controls71
Figure 37 Auto-Start Setting71
Figure 38 View Setting71
CONTROL Menu Items72
Key Updater Tool72
Figure 39 Menu Items72
Procedure 6 Using the Key Updater Tool72
Log Downloader73
Procedure 7 Using the Log Downloader73
Extensions Overview74
CONTROL - Control Panel75
Wavelength75
Figure 40 Extensions Overview75
Power Mode76
Current Mode76
Figure 41 Wavelength Controls76
Figure 42 Operating Mode Set to Power76
Device Monitor77
Table 10 Device Monitor Parameters77
Application Log78
Figure 43 Serial Monitor78
Software Development Kit79
Table 11 Generic User Interface Registers79
Read/Write Registers80
Tuning the Wavelength80
Setting the Operating Mode80
Auto Start80
Figure 44 Setting the Wavelength Offset80
Figure 45 Setting the Operating Mode80
Setting the Emission Delay81
Narrow and Wide Range Setting81
Figure 46 Setting the Auto-Start Function81
Figure 47 Setting the Emission Delay81
Setting the Wavelength Modulation Source82
Figure 48 Setting the Modulation Range Parameter82
Figure 49 Setting the Wavelength Modulation Signal Source82
Setting the Wavelength Modulation Signal Coupling83
Figure 50 Setting the Coupling Type83
Internal Generator Frequency84
Internal Generator Amplitude84
Internal Generator Signal Waveform84
Figure 51 Setting the Internal Generator Frequency84
Figure 52 Setting the Signal Amplitude of the Internal Generator84
Internal Generator -Signal Output85
Figure 53 Setting the Internal Generator Waveform85
Figure 54 Toggling the Internal Generator Signal Output85
Wavelength Modulation On/Off86
Trigger Setting Input/Output86
Figure 55 Turning on Wavelength Modulation86
Figure 56 Setting the Trigger to Input or Output86
Trigger Indicates Emission87
Trigger Sawtooth Wavelength Modulation87
Figure 57 Trigger Set to Indicate Emission87
Figure 58 Trigger Set to Sawtooth Wavelength Modulation87
Readings88
Figure 59 Read-Only Registers under the Readings Tab88
Errors and Status Indicators89
Status Indicators89
Error Codes89
Graphing89
Figure 60 Error and Status Tab89
Figure 61 Graphing Tab90
Installing the Laser91
Mechanical Installation93
General93
Standalone Mounting93
Heat Dissipation93
Figure 62 Heat Transfer Surface - BASIK Rear Panel93
Figure 63 Heat Transfer Surface - BASIK Rear Panel94
Slide-In Mounting95
Figure 64 Mounting the Laser95
Operating and Storage Environment96
Figure 65 Front Panel Mounting Holes and Handle96
Connecting the Laser97
Connecting the Safety Interlock97
Interlock Operation97
Lemo Connector97
Connecting an Interlock Switch98
Figure 66 Safety Interlock Connected to a Door Switch (Open Position)98
Procedure 8 Connecting the Door Interlock Circuit (with the RS-485 Adapter)98
Connecting Power99
Connecting Modulation Signals99
BASIK Interface Board99
Table 12 Power Adapter Specifications99
Figure 67 Power Supply99
Figure 68 BASIK Interface Board100
Table 13 Wavelength Modulation Pin Descriptions101
Table 14 Extra I/O Pin Descriptions101
Connecting the Trigger Input or Output102
Input Trigger102
Figure 69 Trigger Input Circuit102
Output Trigger103
Connecting the Optical Output103
Figure 70 Trigger Output Circuit103
Appendices105
A Specifications107
Table 15 Optical107
Table 16 Mechanical Dimensions107
Table 17 Operating and Storage Environment107
Table 18 Electrical108
Table 19 Safety and Regulatory Compliances108
Figure 71 Mechanical Dimensions109
B Service and Support Information111
Servicing the Laser111
Opening the Laser Chassis111
WARRANTY VOID if REMOVED Label111
Figure 72 Warranty Seal111
Support Contact Details112
Support Website112
Shipping Address112
C Interface Pin Assignments113
Main Electrical Interface113
Table 20 Main Electrical Interface Pin Assignment113
Figure 73 Main Electrical Interface PIN Layoutl113
DCONTROL Software115
Installing CONTROL115
Procedure 9 Installing CONTROL115
E RS-485 Adapter121
Main Adapter121
Table 21 RS-485 Adapter Status Leds122
Figure 74 RS-485 Adapter122
F Configuration ID123
Module Configuration ID123
Table 22 Standard BASIK Configuration Ids123
Figure 75 How to Read the Configuration ID123

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NKT Photonics Koheras BASIK Specifications

General

Linewidth	<1 kHz
Polarization	Linear
Polarization Maintaining Fiber (PMF)	Yes
Polarization Extinction Ratio	>20 dB
Stability	<1 pm over 8 hours
Storage Temperature	-20°C to 60°C

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