When using a connector for optical fiber connection, if the connector is not continuous, it will cause . A: Optical power cannot be transmitted B: Fresnel reflection of optical power C: Scattering loss of optical power D: Part of the scattering loss of optical power or return to the transmitting end in the form of reflection
When using a connector for optical fiber connection, if the connector is not continuous, it will cause . A: Optical power cannot be transmitted B: Fresnel reflection of optical power C: Scattering loss of optical power D: Part of the scattering loss of optical power or return to the transmitting end in the form of reflection
无源光网络由哪些部分构成？( ) A: A.OLT（Optical Line Terminal）－光线路终端 B: B.ONU（Optical Network Unit）－光网络单元 C: C.ONT（ Optical Network Terminal）－光网络终端 D: D.ODN（Optical Distribution Network）－光分配网
无源光网络由哪些部分构成？( ) A: A.OLT（Optical Line Terminal）－光线路终端 B: B.ONU（Optical Network Unit）－光网络单元 C: C.ONT（ Optical Network Terminal）－光网络终端 D: D.ODN（Optical Distribution Network）－光分配网
According to , optical fiber movable connectors can be divided into two types: aligning type and non-aligning type. A: Connection method B: Structure C: Optical fiber mutual contact relationship D: Optical fiber type
According to , optical fiber movable connectors can be divided into two types: aligning type and non-aligning type. A: Connection method B: Structure C: Optical fiber mutual contact relationship D: Optical fiber type
Optical fiber communication refers to: 光纤通信指的是：
Optical fiber communication refers to: 光纤通信指的是：
智慧职教: ODF（Optical Distribution Frame）指的是（ ）。
智慧职教: ODF（Optical Distribution Frame）指的是（ ）。
When measuring the optical power, we should first ensure that the input optical power difference of each channel of the OMU is within ( ). A: 1dB B: 2dB C: 3dB D: 5dB
When measuring the optical power, we should first ensure that the input optical power difference of each channel of the OMU is within ( ). A: 1dB B: 2dB C: 3dB D: 5dB
In the OSNR model for EDFA amplifiers， SNR OUT = 1/（1/SNR IN + FhvB/P IN ）， what does SNR IN represent？（） A: the signal to noise of the current optical amplifier B: the signal to noise of the previous amplifier or source C: the signal to noise introduced by the optical multiplexer D: the accumulated noise to signal ratio of the optical channel
In the OSNR model for EDFA amplifiers， SNR OUT = 1/（1/SNR IN + FhvB/P IN ）， what does SNR IN represent？（） A: the signal to noise of the current optical amplifier B: the signal to noise of the previous amplifier or source C: the signal to noise introduced by the optical multiplexer D: the accumulated noise to signal ratio of the optical channel
What two descriptions best define DWDM？ （） A: a WDM system that is compatible with EDFA technology B: an optical technology for transmitting up to 16 channels over multiple fiber strands C: an optical technology for transmitting up to 32 channels over multiple fiber strands D: a technology for transmitting multiple optical signals using less sophisticated transceiver designthen CWDM E: a technology for transmitting more closely packed optical signals using more sophisticatedtransceiver designs than CWDM
What two descriptions best define DWDM？ （） A: a WDM system that is compatible with EDFA technology B: an optical technology for transmitting up to 16 channels over multiple fiber strands C: an optical technology for transmitting up to 32 channels over multiple fiber strands D: a technology for transmitting multiple optical signals using less sophisticated transceiver designthen CWDM E: a technology for transmitting more closely packed optical signals using more sophisticatedtransceiver designs than CWDM
PON是一种典型的无源光网络，以下属于PON组网架构组成的是（） A: OLT（Optical Line Terminal）光线路终端 B: ONU（Optical Network Unit）光网络单元 C: ODN（Optical Distribution Network）光分配网络 D: AON（Active Optical Network） 有源光网络 E: SFU（Single Family Unit） 单家庭住户单元
PON是一种典型的无源光网络，以下属于PON组网架构组成的是（） A: OLT（Optical Line Terminal）光线路终端 B: ONU（Optical Network Unit）光网络单元 C: ODN（Optical Distribution Network）光分配网络 D: AON（Active Optical Network） 有源光网络 E: SFU（Single Family Unit） 单家庭住户单元
The section which is cross to optical axis of anisotropic mineral has no pleochroism and absorption.
The section which is cross to optical axis of anisotropic mineral has no pleochroism and absorption.