Programmable optical switching add/drop multiplexer

In an optical system with an INPUT port, a DROP port, an ADD port, a PASS port, a first thin film optical demux/mux, an INPUT lens, a DROP lens, a first lens array, a second thin film optical demux/mux, a ADD lens, a PASS lens, a second lens array, and an array of mirrors;

• an optical add/drop multiplexer comprising:
• the INPUT lens, positioned between the INPUT port and the first thin film optical demux/mux, collimating light from the INPUT port for the first thin film optical demux/mux;
• the DROP lens, positioned between the DROP port and the first thin film optical demux/mux, focusing light from the first thin film optical demux/mux on the DROP port;
• the first thin film optical demux/mux positioned between the INPUT and DROP collimators and the first lens array that demultiplexes optical channels of light from a multi-channel collimated IN light source, and multiplexes optical channels of light onto a multi-channel DROP receive;
• the first lens array positioned between the first thin film optical demux/mux and the array of mirrors that focuses light between the first thin film optical demux/mux and the array of mirrors;
• the array of mirrors positioned between the first lens array and second lens array that reflect light;
• the second lens array positioned between the array of mirrors and the second thin film optical demux/mux that focuses light from between a second thin film optical demux/mux and the array of mirrors;
• the second thin film optical demux/mux positioned between the ADD and PASS lenses and the second lens array that demultiplexes optical channels of light from a multi-channel collimated ADD light source, and multiplexes optical channels of light onto a multi-channel collimated PASS receive;
• the ADD lens positioned between the second thin film optical demux/mux and the ADD port that collimates light from an optical ADD channel for the second thin film optical demux/mux;
• the PASS lens positioned between the second thin film optical demux/mux and the PASS port that focuses light from the second thin film optical demux/mux on an optical PASS channel.

In optical system with an INPUT port, a DROP port, an ADD port, a PASS port, an INPUT/PASS circulator, and ADD/DROP circulator, an INPUT/PASS lens, a ADD/DROP lens, a thin film optical demux/mux, a lens array, an array of mirrors, an optical add/drop multiplexer comprising:

• the INPUT/PASS circulator positioned between the INPUT port and the INPUT/PASS lens circulating light between the INPUT port and the INPUT/PASS lens, and between the INPUT/PASS lens and the PASS port;
• the ADD/DROP circulator positioned between the OUTPUT port and the ADD/DROP lens circulating light between the ADD port and the ADD/DROP lens, and between the ADD/DROP lens and the DROP port;
• the INPUT/PASS lens positioned between INPUT/PASS circulator and the thin film optical demux/mux collimating light from the INPUT/PASS circulator for the thin optical demux/mux when light is traveling in the first direction and focusing light from the thin film optical demux/mux onto the INPUT/PASS circulator when the signal is traveling in the second direction;
• the ADD/DROP lens positioned between ADD/DROP circulator and the thin film optical demux/mux focusing light from the thin film optical demux/mux to the receiving when light is traveling in first direction and collimating light from the ADD/DROP circulator for the thin film optical demux/mux in the second direction;
• the thin film optical demux/mux positioned between both the INPUT/PASS lens and the ADD/DROP lens and the lens array that demultiplexes optical channels of light from a multi-channel collimated light source, and multiplexes optical channels of light onto a multi-channel collimated light source;
• the lens array positioned between the thin film optical demux/mux and the array of mirrors that focuses light between the thin film optical demux/mux and the array of mirrors;
• and
• the array of mirrors that reflect light.

In optical system with an INPUT port, a DROP port, an ADD port, a PASS port, an INPUT lens, a PASS lens, a ADD lens, a DROP lens, a thin film optical demux/mux, a lens array, an array of mirrors, an optical add/drop multiplexer comprising:

• the INPUT lens positioned between INPUT port and the thin film optical demux/mux collimating light from the INPUT port for the thin film optical demux/mux;
• the ADD lens positioned between ADD port and the thin film optical demux/mux collimating light from the ADD port for the first thin film optical demux/mux;
• the DROP lens positioned between DROP port and the thin film optical demux/mux focusing light from the first thin film optical demux/mux onto the DROP port;
• the thin film optical demux/mux positioned between the INPUT, PASS, ADD, and DROP lenses and the lens array that demultiplexes optical channels of light from a multi-channel collimated light source, and multiplexes optical channels of light onto a multi-channel collimated light source;
• the lens array, positioned between the thin film optical demux/mux and the array of mirrors, focusing light between the thin film optical demux/mux and the array of mirrors;
• and
• the array of mirrors reflecting light.