Ciena Corporation

Victor Aldea

Trevor Meunier

Mitchell O'Leary

Kamran Rahmani

Terence Arthur Graham

Marc Leclair

Peter Ajersch

Yannick Brisebois

Eric Maniloff

Bonnie Lynne Mack

Priyanth Mehta

Michael Hubbard

Mitch O'Leary

Arkadiusz Eric Lutkiewicz

Michael Ledwinka

Will Leckie

Terence Graham

A coherent optical transmitter includes circuitry connected to a coherent modulator; and a plurality of tunable optical filters (TOFs) connected to one another and connected to an output of the coherent modulator, wherein the plurality of tunable optical filters are configurable to create an effective transfer function having a variable width. The TOFs are cascaded and can be included in discrete form on electro-optic printed circuit boards (PCBs), or integrated in various electro-optic material systems such as in silicon photonics, photonic integrated circuits (PICs), as well as hybrid and other approaches. The advantage of this approach includes improved OSNR in colorless transmitters.

Tunable optical filter in coherent optical transmitters

A module for use in a hardware platform for networking, computing, and/or storage includes a printed circuit board assembly having a primary side and a secondary side, wherein the primary side includes more physical space, in a vertical direction extending out from the printed circuit board assembly, than the secondary side; electrical and/or optical components disposed on the primary side of the printed circuit board assembly; and a secondary side heatsink located on and extending from the secondary side, wherein the secondary side heatsink is disposed to one of i) an electrical and/or optical component disposed on the secondary side, and ii) an optical component disposed on the primary side, for thermal management.

Secondary side heatsink techniques for optical and electrical modules

A module for use in a hardware platform for networking, computing, and/or storage includes a printed circuit board assembly; components disposed on a primary side of the printed circuit board assembly; a primary side heatsink for a pluggable module, wherein the primary side heatsink is disposed to one or more pivot points on the pluggable module, for applying a uniform and controlled external force against the pluggable module. The module further includes a cage attached to the printed circuit board assembly for supporting the pluggable module, wherein the one or more pivot points are external to the cage.

Heatsink techniques for optical and electrical modules

A combination standoff and LED includes a surface mount solder standoff which can be either threaded or unthreaded, and a surface mount LED disposed and fixed in the center of the base of the standoff. The combination standoff and LED is adapted to receive a lightpipe via the either threaded or unthreaded portion of the surface mount solder standoff. This combination standoff and LED results in a single piece of hardware which simplifies the physical PCBA layout design and removes any Computer Aided Design (CAD) placement errors that would normally be present if two separate hardware components were placed together manually.

Combined surface mount standoff and LED for space constrained applications

A micro-optical connector holder with an integrated mating system for an optical assembly, typically on a modem PCBA. The integrated mating system is used to hold the micro-optical connectors together during assembly and to apply constant pressure keeping the connectors fully mated. The invention also uses a spring-pin mechanism to keep the holder lid and connectors in place without the use of screws or glue to make assembly easier. The integrated mating system allows the micro-optical connectors to be easily installed and uninstalled for manufacturing and testing purposes. The connector plugs and connector receptacles are aligned and secured by the integrated connector holder.

Micro-optical connector holder with integrated mating system

An optical fiber connector of a networking module faceplate assembly includes a shuttle body, a connection assembly, and a retention clip. The shuttle body including a fiber slot extending across the shuttle body and adapted for an optical fiber to extend therethrough. The connection assembly is adapted to connect the optical fiber of the networking module to an external optical fiber connector. The connection assembly includes a ferrule flange fiber termination, a split sleeve, and a ferrule. The ferrule flange fiber termination positioned within the shuttle body and adapted to splice to an end of the optical fiber. A length of the optical fiber connector can be less than half a length of the external optical fiber connector.

Reduced size optical connector for modules and circuit packs

The present disclosure provides pluggable optical modules that are prevented from reaching potentially dangerous temperatures when a fiber optic connector is not present and engaged with the associated module housing. Further, the present disclosure provides fiber optic connectors and/or pluggable optical modules that incorporate a port heat shield external to the associated face plate when the pluggable optical modules and fiber optic connectors are engaged, thereby preventing a user from contacting potentially hot and dangerous metallic surfaces of the module housings, as well as providing access for cooling air flow. The solutions presented herein are equally applicable to fixed optical ports and connectors as well.

Pluggable optical module thermal management and heat shield assemblies, devices, and methods

A heatsink for pluggable optical devices that incorporates features to limit the travel and deformation of the mating/mated spring clip that holds the heatsink to the cage of a pluggable optical device. The heatsink bearing surface takes the shape and contour of the leaf spring portion of the spring clip, thereby contacting and supporting it well before it plastically yields and permanently deforms. The shape of this feature, which may be coupled to or integrally formed with the heatsink bearing surface, can match exactly the shape of the spring clip or approximate the shape using a curved, variable, or other easier to manufacture profile, as long as the associated protrusions extend up into the corners of the leaf spring portion of the spring clip. This feature effectively acts as a hard stop and prevents the spring clip from being compromised due to improper handling or installation.

Heatsink for pluggable optical devices for the prevention of heatsink clip deformation

A module includes a physical form factor with one or more openings in a faceplate for receiving a corresponding sub-slot module; module high-speed connectors configured to mate with high-speed connectors in the corresponding sub-slot module; and one or more micro latches for each of the one or more openings to engage a compliant faceplate insert on the corresponding sub-slot module, wherein a single micro latch is utilized to engage a single sub-slot module to provide built-in physical compliancy with a biasing force sufficient to engage the high-speed connectors with the module high-speed connectors. Each of the one or more micro latches includes a latching pin which engages an integrated channel in the compliant faceplate insert on the corresponding sub-slot module and which engages an end of the integrated channel to apply a force to a spring on the compliant faceplate insert.

Compliant micro latch for high-speed signal sub-slot pluggable modules

A fiber tray with an adjustable fiber boot exit angle includes one or more trays each including a base layer and a retention mechanism for one or more optical fibers at various positions about the base layer, wherein the one or more trays provide management of the one or more optical fibers in a fiber optic assembly; a fiber boot at an exit point of a tray of the one or more trays, wherein the fiber boot provides an exit for the one or more optical fibers from the fiber tray; and an adjustment mechanism configured to adjust an exit angle of the one or more optical fibers by changing position of the fiber boot, wherein the exit angle is set based on a type of the fiber optic assembly.

Flexible routing in a fiber tray for use in a fiber optic assembly

A circuit assembly is disclosed. The circuit assembly includes an edge connector comprising a plurality of connector pins for electrical connection, a rigid circuit board comprising a connector footprint region, wherein the connector footprint region is mechanically coupled to the plurality of connector pins, and a flexible cable comprising a first edge connection component, wherein the flexible cable is inserted in-between the connector footprint region and at least a portion of the plurality of connector pins, wherein the first edge connection component is electrically connected to at least one of the plurality of connector pins.

Flexible cable for pluggable modules

A latch assembly operable for securing an electronic circuit card in a chassis such that connectors associated with the electronic circuit card and a backplane of the chassis are properly coupled, the latch assembly including: an elongate handle structure, wherein a proximal end of the elongate handle structure defines a hole and includes a protruding portion that is configured to engage a recess or lip associated with the chassis, and wherein a distal end of the elongate handle structure includes a handle portion; a spring structure partially obstructing the hole defined by the proximal end of the elongate handle structure; and a rotation member disposed through the hole and configured to engage the electronic circuit card, wherein the spring structure partially obstructing the hole contacts a portion of the rotation member.

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Ottawa, Canada

Victor Aldea