公开(公告)号：US10098221B2

公开(公告)日：2018-10-09

申请号：US15275785

申请日：2016-09-26

Applicant: Applied Optoelectronics, Inc.

Inventor： Rafael Celedon ,  Mark Siejka ,  Michael Jones

IPC: H05K1/02 ,  H05K1/18 ,  G02B6/42

Abstract: A heat transfer assembly may be used to provide a thermal conduit from a module mounted on a circuit board through the circuit board, allowing a thermal path away from the module. The heat transfer assembly generally includes a thermally conductive base with at least one raised thermal pedestal accessible through at least one heat transfer aperture in the circuit board and in thermal contact with the module. In an embodiment, the heat transfer assembly is used in a remote PHY device (RPD) in an optical node, for example, in a CATV/HFC network. The RPD includes an enclosure having a base with at least one raised thermal pedestal in thermal contact with an optical module (e.g., an optical transmitter or transceiver) on a circuit board through at least one heat transfer aperture in the circuit board.

公开(公告)号：US10044441B2

公开(公告)日：2018-08-07

申请号：US15295189

申请日：2016-10-17

Applicant: Applied Optoelectronics, Inc.

Inventor： Michael Jones ,  Rafael Celedon

IPC: H04B10/2575 ,  H04B10/564 ,  H04B17/00

Abstract: Energy reduction in a CATV network device, such as an optical node, in a CATV network may be accomplished using a system and method for controlling an amplifier in response to channel loading. The system and method detects a channel loading condition for a CATV RF signal including a plurality of utilized channels across a channel spectrum defining a plurality of potential channels. The channel loading condition may be detected by scanning the CATV RF signal to measure the channel loading or by obtaining channel loading data from a remote PHY device (RPD) located in the optical node. The system and method then obtains an amplifier operating parameter associated with the channel loading condition and applies the amplifier operating parameter to control power consumption of an amplifier in the optical node (e.g., by changing bias current) in response to the channel loading condition.