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                                2.0um High Power Chirped FBG for Fiber Laser
                            
                            
                    

Connet high-quality 2.0um fiber grating reflectors (also called Fiber Laser cavity mirrors) are written in specialty double clad optical fiber with optimized chirped Fiber Bragg Grating (FBG) writing technology. They are specially designed for 2.0um high power continuous and pulsed fiber lasers, suitable for single-mode fiber to the large mode field (LMA) fiber, the pump power handling capacity can reach more than 200W.
	
	
Connet can provide various bandwidths and accurately matched high and low reflectivity gratings for different applications. They are offered in heat dissipative package or recoated only.
	
 
Specifications:
	
	 
						Unit
					 
						Specification
					 
						Typical Central Wavelength1
					 
						nm
					 
						1908, 1940, 1980
					 
						Tolerance on Central Wavelength
					 
						nm
					 
						1
					 
						Type of Reflector
					 
						 
					 
						HR
					 
						LR
					 
						Peak Reflectivity2
					 
						%
					 
						>99.5
					 
						10±2
					 
						FWHM2 (3dB)
					 
						nm
					 
						2±0.2
					 
						1±0.1
					 
						Side Mode Suppression Ratio
					 
						dB
					 
						20
					 
						10
					 
						Wavelength Mismatch (LR to HR)
					 
						nm
					 
						0.2
					 
						Input/output Fiber Length
					 
						m
					 
						1
					 
						Package Type
					 
						 
					 
						Recoated or High Power Metal Housing
					
		
			
				 
			
					Parameter
				 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
			
				 
			
					 
				
					 
				
					 
			
				 
		
	
					 
				
					 
				
					 
			
	Notes:
1. Other central wavelength available on request.
2. Other bandwidth and reflectivity available on request. 
	
 
Fiber Types:
| 
					 Fiber Core/ Cladding Diameter(um)  | 
				
					 Handling Power of Pump (W)  | 
				
					 Package  | 
			|||
| 
					 50  | 
				
					 200  | 
				
					 500  | 
				
					 Recoated Only  | 
				
					 Heat Dissipation Package  | 
			|
| 
					 10/130  | 
				
					 √  | 
				
					 
  | 
				
					 
  | 
				
					 √  | 
				
					 √  | 
			
| 
					 25/250  | 
				
					 
  | 
				
					 √  | 
				
					 
  | 
				
					 √  | 
				
					 √  | 
			
| 
					 25/400  | 
				
					 
  | 
				
					 √  | 
				
					 
  | 
				
					 √  | 
				
					 √  | 
			
| 
					 25/400 (BD)  | 
				
					 
  | 
				
					 
  | 
				
					 √  | 
				
					 √  | 
				
					 √  | 
			
Notes: Other fiber types available on request
	
Package Dimensions:
	
Unit: mm
  
	
 
	
Ordering Information:
F-1111-2-333-4-5-66
l 1111: Fiber Type
1013: 10/130um NA=0.15/0.46
2525: 25/250um NA=0.11/0.46
2540: 25/400um NA=0.11/0.46
l 2: Grating Type
H: High Reflector
L: Low Reflector
l 333: Central Wavelength in nm
908: 1908nm
l 4: Bandwidth in nm
2: 2nm
*05: 0.5nm
l 5: Package
M: Metal Housing
R: Recoated
l 66: Reflectivity in %
99: 99%
10: 10%
Features:
	· Extremely Low Temperature Slope 
· High Conversion Efficiency 
· High Power Handling
· Outstanding Reliability
· Wide Variety of Fiber Types 
Applications:
· High Power Fiber Laser
· Pulsed Fiber Laser