產品概述
ATR20202-600mW 785nm拉曼窄線寬激光器
GENERAL DESCRIPTION
ATR20202 785nm narrow line laser is characteristic by its highreliability and ultra-narrow linewidth. ATR20202 operates with a single 5V power supply and can output 500 mW laser power.When ATR20202 is used in Ramanspectrometer, it will help to obtain high spectral stability and highresolution. It can be controlled through the TTL interface by the offered pinout definition and the communication protocol. The output laser power canbe changed continuously by changing the LD working current with the commands.
ATR20202-600mW 785nm拉曼窄線寬激光器
APPLICATIONS
Raman spectrometer
Bio-medical
Sensing
FEATURES
lMaxoutput power: 500 mW
lCenterwavelength: 785±0.5 nm
lLinewidth (FWHM): < 0.1 nm
lFiber:105/125μm, 0.22NA,FC/PC
lInterface:UART
lPowersupply: +5V/DC
ADVANTAGE
Narrowline
Highstability
Low powerconsumption
Highreliability
Optical Parameters | Specs | Conditions | ||
Min | Typ | Max | ||
Wavelength center | 784.5 | 785 nm | 785.5 | |
Line-width | 0.08 nm | 0.12 nm | FWHM | |
Output Power | 500 mW | Multimode fiber coupled | ||
Power stability in 2h | 0.4% | RMSE | ||
Stability time | 5 s | 7s | Power stability while open laser | |
SMSR | >40 dB | |||
Optical fiber | 105/125um multimode fiber 0.22NA | Fiber coupled | ||
Connector | FC/PC | Fiber coupled | ||
Electrical Parameters | ||||
LD working current | 300mA | 700mA | 1000mA | |
TEC (?C) (±5) | 25 ?C | |||
Power Supply | 4.75 V | 5 V | 5.25 V | |
Current (Laser on) | 0.75 A | 2 .5 A | TEC on | |
Current (Laser off) | 0.3 A | 1.3 A | TEC on
| |
Figure3 the relationship between output laser power and the operationcurrent
1 Reliabilityand Stability
Figure 4showing thestability times while open laser. The typical stabilization time is 5 seconds. Thisparameter affects the application directly in rapid detection.
Figure 5 showing the long term power stabilitytesting result of 5 samples, it indicated that the laser has a good stabilityin continuous work.
Figure 5 Long term stabilitytesting results of 5 samples
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