Method of generation of two electromagnetic modes using squeezers

A method for transforming a travelling electromagnetic wave comprising two initial modes lying in an initial 2-mode state into a travelling electromagnetic wave comprising two final modes lying in a final 2-mode state, said method comprising the steps of:

• STEP (1) obtaining said two initial modes, and using them as the two input modes for the next step,
• STEP (2) inducing a mutual squeezer to transform the two input modes for this step into the two input modes for the next step,
• STEP (3) inducing a mode coupler to transform the two input modes for this step into the two input modes for the next step,
• STEP (4) inducing a self-squeezer to act on one of the two input modes for this step, to produce the two input modes for the next step,
• STEP (5) obtaining the two input modes for this step, and identifying them as said two final modes.

A method for transforming a travelling electromagnetic wave comprising two initial modes lying in an initial 2-mode state into a travelling electromagnetic wave comprising two final modes lying in a final 2-mode state, said method comprising the steps of:

• STEP (1) obtaining said two initial modes, and using them as the two input modes for the next step,
• STEP (2) inducing a self-squeezer to act on one of the two input modes for this step, to produce the two input modes for the next step,
• STEP (3) inducing a mode coupler to transform the two input modes for this step into the two input modes for the next step,
• STEP (4) inducing a mutual squeezer to transform the two input modes for this step into the two input modes for the next step,
• STEP (5) obtaining the two input modes for this step, and identifying them as said two final modes.

A method for transforming a travelling electromagnetic wave comprising two initial modes lying in an initial 2-mode state into a travelling electromagnetic wave comprising two final modes lying in a final 2-mode state, said method comprising the steps of:

• STEP (1) obtaining said two initial modes, and using them as the two input modes for the next step,
• STEP (2) inducing a mode coupler to transform the two input modes for this step into the two input modes for the next step,
• STEP (3) inducing a mutual squeezer to transform the two input modes for this step into the two input modes for the next step,
• STEP (4) inducing a self-squeezer to act on one of the two input modes for this step, to produce the two input modes for the next step,
• STEP (5) obtaining the two input modes for this step, and identifying them as said two final modes.

A method of transforming a travelling electromagnetic wave comprising two initial modes into a travelling electromagnetic wave comprising two final modes, whereby the mutual squeezing parameter of said two initial modes can be measured, said method comprising the steps of:

• (1) obtaining said two initial modes, and using them as the two input modes for the next step,
• (2) inducing a mutual squeezer to transform the two input modes for this step into the two input modes for the next step,
• (3) obtaining the two input modes for this step, and identifying them as said two final modes,
• (4) varying the characteristic parameters of said mutual squeezer until the noise intensity of one of said two final modes is minimized,
• (5) collecting, after Step (4) is completed, the following data:
• the noise intensities of said two final modes, and the characteristic parameters of said mutual squeezer,
• (6) calculating said mutual-squeezing parameter of said two initial modes using said data collected in Step (5).

A method of transforming a travelling electromagnetic wave comprising an initial mode into a travelling electromagnetic wave comprising a final mode, whereby the self-squeezing parameter of said initial mode can be measured, said method comprising the steps of:

• (1) obtaining said initial mode, and using it as the input mode for the next step,
• (2) inducing a self-squeezer to transform the input mode for this step into the input mode for the next step,
• (3) obtaining the input mode for this step, and identifying it as said final mode,
• (4) varying the characteristic parameters of said self-squeezer until the noise intensity of said final mode is minimized,
• (5) collecting, after Step (4) is completed, the following data:
• the noise intensity of said final mode, and the characteristic parameters of said self-squeezer,
• (6) calculating said self-squeezing parameter of said initial mode using said data collected in Step (5).

A method of transforming a travelling electromagnetic wave comprising two initial modes into a travelling electromagnetic wave comprising two final modes, whereby the N.sub.12 parameter of said two initial modes can be measured, said method comprising the steps of:

• (1) obtaining said two initial modes, and using them as the two input modes for the next step,
• (2) inducing a mode coupler to transform the two input modes for this step into the two input modes for the next step,
• (3) obtaining the two input modes for this step, and identifying them as said two final modes,
• (4) varying the characteristic parameters of said mode coupler until the larger of the two noise intensities of said two final modes is maximized,
• (5) collecting, after Step (4) is completed, the following data:
• the noise intensities of said two final modes, and the characteristic parameters of said mode coupler,
• (6) calculating said N.sub.12 parameter of said two initial modes using said data collected in Step (5).