OFDR光源指标
FMCW出口
波长: 1550±0.5nm
调频波形:正三角波(50%)
调频ROI区域(上升/下降沿):>98%
线性度:<1e-8(1-R²)
调频范围:10 GHz
调制频率(三角波频率):10Hz,100Hz,1kHz
扫频斜率:0.2GHz/ms(@10Hz),2GHz/ms(@100Hz),20GHz/ms(@1kHz)
积分线宽:＜2kHz
本征线宽: ＜20Hz
出光功率(尾纤):＞20mw
LO出口
波长:1550±0.5nm
积分线宽:＜2kHz
本征线宽: ＜20Hz
出光功率(尾纤):＞20mw
与FMCW出口最小频差:2GHz
与FMCW相位锁定，拍频相干
OFDR Light Source Specifications
FMCW Output Port
Wavelength: 1550 ± 0.5 nm
Frequency Modulation Waveform: Positive triangular wave (50% duty cycle)
Frequency Modulation ROI (Region of Interest, rise/fall edges): >98%
Linearity: <1e-8 (1-R²)
Frequency Tuning Range: 10 GHz
Modulation Frequency (Triangular Wave Freq.): 10 Hz, 100 Hz, 1 kHz
Sweep Rate (Slope): 0.2 GHz/ms (@10 Hz), 2 GHz/ms (@100 Hz), 20 GHz/ms (@1 kHz)
Integral Linewidth: <2 kHz
Intrinsic Linewidth: <20 Hz
Output Power (Pigtailed): >20 mW
LO Output Port
Wavelength: 1550 ± 0.5 nm
Integral Linewidth: <2 kHz
Intrinsic Linewidth: <20 Hz
Output Power (Pigtailed): >20 mW
Minimum Frequency Difference from FMCW Output: 2 GHz
Phase-locked with the FMCW output and maintains coherent beat note.
