* at 20±3℃, indoor, 1550nm wavelength, 0.9mm fiber, with white coat, 270Hz, error < 5%, * 0.25, 2.0, 3.0mm fiber, the performance at continuous-wave will be lower * 1KHz, 2KHz, the performance at modulated signal will be lower * at 1310nm wavelength, the performance will be lower |