OFDR光源指標

FMCW出口

?   波長: 1550±0.5nm

?   調頻波形:正三角波(50%)

?   調頻ROI區域(上升/下降沿):>98%

?   線性度:<1e-8(1-R2)

?   調頻范圍:10 GHz

?   調制頻率(三角波頻率):10Hz,100Hz,1kHz

?   掃頻斜率:0.2GHz/ms(@10Hz),2GHz/ms(@100Hz),20GHz/ms(@1kHz)

?   積分線寬:＜2kHz

?   本征線寬: ＜20Hz

?   出光功率(尾纖):＞20mw

LO出口

?   波長:1550±0.5nm

?   積分線寬:＜2kHz

?   本征線寬: ＜20Hz

?   出光功率(尾纖):＞20mw

?   與FMCW出口最小頻差:2GHz

?   與FMCW相位鎖定，拍頻相干

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.