Features
Spectral linewidth ≤3KHz，High frequency stability,no mode hopping
Applications
Laser seed source，Acoustic sensor,hydrophone
Single Frequency Narrow-linewidth Fiber Laser
The source laser adopts a narrow line-width DFB laser,combined with a high-performance current sweep hardware drive circuit,so that the laser keeps a narrow line-width,low noise,high performance and stable output.
Features
Narrow-linewidth 3kHz
All-fiber resonator structure
High frequency stability,no mode hopping
Module shockproof design
Specification
參數(shù) Parameter 單位 Unit 指標(biāo) Value 中心波長范圍 Center wavelength range nm 1540~1560 信號(hào)背景比 Signal background ratio dB > 60 光波模式 Light wave pattern - 單縱模, 連續(xù)波 Single longitudinal mode, continuous wave 輸出功率 Output power mW 10, 20 偏振態(tài) Polarization - 線偏振 Linear polarization 偏振消光比 Polarization extinction ratio dB > 23 偏振度 Polarization degree - 99% 光譜線寬 Spectral linewidth kHz 3kHz 頻率不穩(wěn)定度 Frequency instability MHz <20 (15min) <100 (長期) <20 (15min) <100 (for a long time) 相對(duì)強(qiáng)度噪聲@>3MHz Relative intensity noise@>3MHz dB/Hz <-110dB/Hz@ROF peak, <-120dB/Hz@1MHz 相位噪聲@1-9.5KHz Phase noise@1-9.5KHz dB < -110 功率不穩(wěn)定性 @>3h Relative intensity noise@>3MHz - <1% 輸出光纖類型Phase noise@1-9.5KHzPower supply - SMF-28e 單模光纖或 保偏光纖 PM1550 SMF-28e Single fiber Or Polarization fiber PM1550 供電 Power supply - DC 5V 或 AC 220V DC 5V OR AC 220V
Dimension
ordering information
波長 Wavelength 功率 Power 尾纖類型 Pigtail type 尾纖套管直徑 Diameter of pigtail casing 尾纖長度 Fiber length 連接頭形式 Connector 封裝形式 Packaging 1550=1550nm 10=10mW 100=100mW SM=單模光纖 SM=Single fiber PM=保偏光纖 PM=Polarization fiber 9-0.9mm 2-2mm 0=法蘭 0=Flange 1 =1m 2 =2m 0=None 1=FC/APC 2=FC/UPC B=臺(tái)式 B=Benchtop M=模塊式 M=Module
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